Vulnerabilities (CVE)

Filtered by vendor Mybb Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-45556 1 Mybb 1 Mybb 2023-11-14 N/A 5.4 MEDIUM
Cross Site Scripting vulnerability in Mybb Mybb Forums v.1.8.33 allows a local attacker to execute arbitrary code via the theme Name parameter in the theme management component.
CVE-2023-46251 1 Mybb 1 Mybb 2023-11-14 N/A 6.1 MEDIUM
MyBB is a free and open source forum software. Custom MyCode (BBCode) for the visual editor (_SCEditor_) doesn't escape input properly when rendering HTML, resulting in a DOM-based XSS vulnerability. This weakness can be exploited by pointing a victim to a page where the visual editor is active (e.g. as a post or Private Message) and operates on a maliciously crafted MyCode message. This may occur on pages where message content is pre-filled using a GET/POST parameter, or on reply pages where a previously saved malicious message is quoted. The impact is be mitigated when: 1. the visual editor is disabled globally (_Admin CP ? Configuration ? Settings ? Clickable Smilies and BB Code: [Clickable MyCode Editor](https://github.com/mybb/mybb/blob/mybb_1836/install/resources/settings.xml#L2087-L2094)_ is set to _Off_), or 2. the visual editor is disabled for individual user accounts (_User CP ? Your Profile ? Edit Options_: _Show the MyCode formatting options on the posting pages_ checkbox is not checked). MyBB 1.8.37 resolves this issue with the commit `6dcaf0b4d`. Users are advised to upgrade. Users unable to upgrade may mitigate the impact without upgrading MyBB by changing the following setting (_Admin CP ? Configuration ? Settings_): - _Clickable Smilies and BB Code ? [Clickable MyCode Editor](https://github.com/mybb/mybb/blob/mybb_1836/install/resources/settings.xml#L2087-L2094)_: _Off_. Similarly, individual MyBB forum users are able to disable the visual editor by diabling the account option (_User CP ? Your Profile ? Edit Options_) _Show the MyCode formatting options on the posting pages_.
CVE-2022-24734 1 Mybb 1 Mybb 2022-06-02 6.5 MEDIUM 7.2 HIGH
MyBB is a free and open source forum software. In affected versions the Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type `php` with PHP code, executed on on _Change Settings_ pages. This results in a Remote Code Execution (RCE) vulnerability. The vulnerable module requires Admin CP access with the `Can manage settings?` permission. MyBB's Settings module, which allows administrators to add, edit, and delete non-default settings, stores setting data in an options code string ($options_code; mybb_settings.optionscode database column) that identifies the setting type and its options, separated by a new line character (\n). In MyBB 1.2.0, support for setting type php was added, for which the remaining part of the options code is PHP code executed on Change Settings pages (reserved for plugins and internal use). MyBB 1.8.30 resolves this issue. There are no known workarounds.
CVE-2021-43281 1 Mybb 1 Mybb 2021-11-05 6.5 MEDIUM 7.2 HIGH
MyBB before 1.8.29 allows Remote Code Injection by an admin with the "Can manage settings?" permission. The Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type "php" with PHP code, executed on Change Settings pages.
CVE-2021-41866 1 Mybb 1 Mybb 2021-10-28 3.5 LOW 5.4 MEDIUM
MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP's theme management is not escaped properly.
CVE-2021-27889 1 Mybb 1 Mybb 2021-09-21 4.3 MEDIUM 6.1 MEDIUM
Cross-site Scripting (XSS) vulnerability in MyBB before 1.8.26 via Nested Auto URL when parsing messages.
CVE-2021-27890 1 Mybb 1 Mybb 2021-09-21 6.8 MEDIUM 8.8 HIGH
SQL Injection vulnerablity in MyBB before 1.8.26 via theme properties included in theme XML files.
CVE-2020-19048 1 Mybb 1 Mybb 2021-09-09 3.5 LOW 5.4 MEDIUM
Cross Site Scripting (XSS) in MyBB v1.8.20 allows remote attackers to inject arbitrary web script or HTML via the "Title" field found in the "Add New Forum" page by doing an authenticated POST HTTP request to '/Upload/admin/index.php?module=forum-management&action=add'.
CVE-2020-19049 1 Mybb 1 Mybb 2021-09-07 3.5 LOW 5.4 MEDIUM
Cross Site Scripting (XSS) in MyBB v1.8.20 allows remote attackers to inject arbitrary web script or HTML via the "Description" field found in the "Add New Forum" page by doing an authenticated POST HTTP request to '/Upload/admin/index.php?module=forum-management&action=add'.
CVE-2021-27946 1 Mybb 1 Mybb 2021-03-23 6.5 MEDIUM 8.8 HIGH
SQL Injection vulnerability in MyBB before 1.8.26 via poll vote count. (issue 1 of 3).
CVE-2021-27947 1 Mybb 1 Mybb 2021-03-16 6.5 MEDIUM 7.2 HIGH
SQL Injection vulnerability in MyBB before 1.8.26 via the Copy Forum feature in Forum Management. (issue 2 of 3).
CVE-2021-27948 1 Mybb 1 Mybb 2021-03-16 6.5 MEDIUM 7.2 HIGH
SQL Injection vulnerability in MyBB before 1.8.26 via User Groups. (issue 3 of 3).
CVE-2021-27949 1 Mybb 1 Mybb 2021-03-16 4.3 MEDIUM 6.1 MEDIUM
Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.
CVE-2021-27279 1 Mybb 1 Mybb 2021-02-26 3.5 LOW 5.4 MEDIUM
MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode).
CVE-2018-7305 1 Mybb 1 Mybb 2020-08-24 4.0 MEDIUM 4.9 MEDIUM
MyBB 1.8.14 is not checking for a valid CSRF token, leading to arbitrary deletion of user accounts.
CVE-2020-15139 1 Mybb 1 Mybb 2020-08-13 4.3 MEDIUM 6.1 MEDIUM
In MyBB before version 1.8.24, the custom MyCode (BBCode) for the visual editor doesn't escape input properly when rendering HTML, resulting in a DOM-based XSS vulnerability. The weakness can be exploited by pointing a victim to a page where the visual editor is active (e.g. as a post or Private Message) and operates on a maliciously crafted MyCode message. This may occur on pages where message content is pre-filled using a GET/POST parameter, or on reply pages where a previously saved malicious message is quoted. After upgrading MyBB to 1.8.24, make sure to update the version attribute in the `codebuttons` template for non-default themes to serve the latest version of the patched `jscripts/bbcodes_sceditor.js` file.
CVE-2014-3827 1 Mybb 1 Mybb 2020-02-12 3.5 LOW 5.4 MEDIUM
Multiple cross-site scripting (XSS) vulnerabilities in the MyBB (aka MyBulletinBoard) before 1.8.4 allow remote authenticated users to inject arbitrary web script or HTML via the title parameter in the (1) edit or (2) add action in the user-users module or the (3) finduser action or the name parameter in an (4) edit action in the user-user module or the (5) editprofile action to modcp.php.
CVE-2014-3826 1 Mybb 1 Mybb 2020-02-12 3.5 LOW 5.4 MEDIUM
Cross-site scripting (XSS) vulnerability in MyBB before 1.6.13 allows remote authenticated users to inject arbitrary web script or HTML via the name parameter in the edit action of the config-profile_fields module.
CVE-2019-20225 1 Mybb 1 Mybb 2020-01-08 5.8 MEDIUM 6.1 MEDIUM
MyBB before 1.8.22 allows an open redirect on login.
CVE-2018-1000502 1 Mybb 1 Mybb 2019-10-03 6.5 MEDIUM 7.2 HIGH
MyBB Group MyBB contains a File Inclusion vulnerability in Admin panel (Tools and Maintenance -> Task Manager -> Add New Task) that can result in Allows Local File Inclusion on modern PHP versions and Remote File Inclusion on ancient PHP versions. This attack appear to be exploitable via Must have access to admin panel. This vulnerability appears to have been fixed in 1.8.15.
CVE-2018-1000503 1 Mybb 1 Mybb 2019-10-03 4.0 MEDIUM 4.3 MEDIUM
MyBB Group MyBB contains a Incorrect Access Control vulnerability in Private forums that can result in Users can view posts from private forums without having the password. This attack appear to be exploitable via Subscribe to a forum through IDOR. This vulnerability appears to have been fixed in 1.8.15.
CVE-2017-16780 1 Mybb 1 Mybb 2019-10-03 7.5 HIGH 9.8 CRITICAL
The installer in MyBB before 1.8.13 allows remote attackers to execute arbitrary code by writing to the configuration file.
CVE-2019-12830 1 Mybb 1 Mybb 2019-06-20 3.5 LOW 8.7 HIGH
In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue.
CVE-2019-12831 1 Mybb 1 Mybb 2019-06-17 6.5 MEDIUM 7.2 HIGH
In MyBB before 1.8.21, an attacker can abuse a default behavior of MySQL on many systems (that leads to truncation of strings that are too long for a database column) to create a PHP shell in the cache directory of a targeted forum via a crafted XML import, as demonstrated by truncation of aaaaaaaaaaaaaaaaaaaaaaaaaa.php.css to aaaaaaaaaaaaaaaaaaaaaaaaaa.php with a 30-character limit, aka theme import stylesheet name RCE.
CVE-2019-3579 1 Mybb 1 Mybb 2019-06-07 5.0 MEDIUM 5.3 MEDIUM
MyBB 1.8.19 allows remote attackers to obtain sensitive information because it discloses the username upon receiving a password-reset request that lacks the code parameter.
CVE-2019-3578 1 Mybb 1 Mybb 2019-06-07 4.3 MEDIUM 6.1 MEDIUM
MyBB 1.8.19 has XSS in the resetpassword function.
CVE-2018-19201 1 Mybb 1 Mybb 2019-04-12 4.3 MEDIUM 6.1 MEDIUM
A reflected XSS vulnerability in the ModCP Profile Editor in MyBB before 1.8.20 allows remote attackers to inject JavaScript via the 'username' parameter.
CVE-2018-19202 1 Mybb 1 Mybb 2019-04-12 4.3 MEDIUM 6.1 MEDIUM
A reflected XSS vulnerability in index.php in MyBB 1.8.x through 1.8.19 allows remote attackers to inject JavaScript via the 'upsetting[bburl]' parameter.
CVE-2018-14575 1 Mybb 1 Trash Bin 2019-03-26 6.8 MEDIUM 8.8 HIGH
Trash Bin plugin 1.1.3 for MyBB has cross-site scripting (XSS) via a thread subject and a cross-site request forgery (CSRF) via a post subject.
CVE-2018-14724 1 Mybb 1 Ban List 2019-03-26 3.5 LOW 5.4 MEDIUM
In the Ban List plugin 1.0 for MyBB, any forum user with mod privileges can ban users and input an XSS payload into the ban reason, which is executed on the bans.php page.
CVE-2017-8104 1 Mybb 1 Mybb 2019-03-19 5.0 MEDIUM 5.3 MEDIUM
In MyBB before 1.8.11, the smilie module allows Directory Traversal via the pathfolder parameter.
CVE-2018-15596 1 Mybb 1 Mybb 2018-11-08 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in inc/class_feedgeneration.php in MyBB 1.8.17. On the forum RSS Syndication page, one can generate a URL such as http://localhost/syndication.php?fid=&type=atom1.0&limit=15. The thread titles (within title elements of the generated XML documents) aren't sanitized, leading to XSS.
CVE-2018-17128 1 Mybb 1 Mybb 2018-11-07 3.5 LOW 5.4 MEDIUM
A Persistent XSS issue was discovered in the Visual Editor in MyBB before 1.8.19 via a Video MyCode.
CVE-2006-0442 1 Mybb 1 Mybb 2018-10-19 4.3 MEDIUM N/A
Multiple cross-site scripting (XSS) vulnerabilities in usercp.php in MyBulletinBoard (MyBB) 1.02 allow remote attackers to inject arbitrary web script or HTML via the (1) notepad parameter in a notepad action and (2) signature parameter in an editsig action. NOTE: These are different attack vectors, and probably a different vulnerability, than CVE-2006-0218 and CVE-2006-0219.
CVE-2005-4199 1 Mybb 1 Mybb 2018-10-19 7.5 HIGH N/A
Multiple SQL injection vulnerabilities in MyBulletinBoard (MyBB) before 1.0 allow remote attackers to execute arbitrary SQL commands via the (1) month, (2) day, and (3) year parameters in an addevent action in calendar.php; (4) threadmode and (5) showcodebuttons in an options action in usercp.php; (6) list parameter in an editlists action to usercp.php; (7) rating parameter in a rate action in member.php; and (8) rating parameter in either showthread.php or ratethread.php.
CVE-2006-2070 1 Mybb 1 Devbb 2018-10-18 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in member.php in DevBB 1.0.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the member parameter in a viewpro action.
CVE-2007-1964 2 Mybb, Mybulletinboard 2 Mybb, Mybulletinboard 2018-10-16 6.0 MEDIUM N/A
member.php in MyBB (aka MyBulletinBoard), when debug mode is available, allows remote authenticated users to change the password of any account by providing the account's registered e-mail address in a debug request for a do_lostpw action, which prints the change password verification code in the debug output.
CVE-2007-1963 2 Mybb, Mybulletinboard 2 Mybb, Mybulletinboard 2018-10-16 7.5 HIGH N/A
SQL injection vulnerability in the create_session function in class_session.php in MyBB (aka MyBulletinBoard) 1.2.3 and earlier allows remote attackers to execute arbitrary SQL commands via the Client-IP HTTP header, as utilized by index.php, a related issue to CVE-2006-3775.
CVE-2007-1906 2 Ecardmax.com, Mybb 2 Hot Editor, Mybb Hot Editor Plugin 2018-10-16 6.8 MEDIUM N/A
Directory traversal vulnerability in richedit/keyboard.php in eCardMAX HotEditor (Hot Editor) 4.0, and the HotEditor plugin for MyBB, allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the first parameter.
CVE-2007-0689 1 Mybb 1 Mybb 2018-10-16 5.0 MEDIUM N/A
MyBB 1.2.4 allows remote attackers to obtain sensitive information via the (1) action[] parameter to member.php, (2) imagehash[] parameter to captcha.php, and (3) a direct request to inc/datahandlers/event.php, which reveal the installation path in the resulting error message.
CVE-2007-0544 1 Mybb 1 Mybb 2018-10-16 6.0 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in private.php in MyBB (aka MyBulletinBoard) allows remote authenticated users to inject arbitrary web script or HTML via the Subject field, a different vector than CVE-2006-2949.
CVE-2008-0383 1 Mybb 1 Mybb 2018-10-15 7.5 HIGH N/A
Multiple SQL injection vulnerabilities in MyBB 1.2.10 and earlier allow remote moderators and administrators to execute arbitrary SQL commands via (1) the mergepost parameter in a do_mergeposts action, (2) rid parameter in an allreports action, or (3) threads parameter in a do_multimovethreads action to (a) moderation.php; or (4) gid parameter to (b) admin/usergroups.php.
CVE-2018-14392 1 Mybb 1 New Threads 2018-09-13 4.3 MEDIUM 6.1 MEDIUM
The New Threads plugin before 1.2 for MyBB has XSS.
CVE-2018-10678 1 Mybb 1 Mybb 2018-06-05 5.8 MEDIUM 6.1 MEDIUM
MyBB 1.8.15, when accessed with Microsoft Edge, mishandles 'target="_blank" rel="noopener"' in A elements, which makes it easier for remote attackers to conduct redirection attacks.
CVE-2018-6844 1 Mybb 1 Mybb 2018-02-26 3.5 LOW 5.4 MEDIUM
MyBB 1.8.14 has XSS via the Title or Description field on the Edit Forum screen.
CVE-2017-16781 1 Mybb 1 Mybb 2017-11-27 3.5 LOW 5.4 MEDIUM
The installer in MyBB before 1.8.13 has XSS.
CVE-2013-6936 1 Mybb 1 Ajax Forum Stat 2017-08-29 7.5 HIGH N/A
Multiple SQL injection vulnerabilities in ajaxfs.php in the Ajax forum stat (Ajaxfs) Plugin 2.0 for MyBB (aka MyBulletinBoard) allow remote attackers to execute arbitrary SQL commands via the (1) tooltip or (2) usertooltip parameter.
CVE-2012-5909 1 Mybb 1 Mybb 2017-08-29 7.5 HIGH N/A
SQL injection vulnerability in admin/modules/user/users.php in MyBB (aka MyBulletinBoard) 1.6.6 allows remote attackers to execute arbitrary SQL commands via the conditions[usergroup][] parameter in a search action to admin/index.php.
CVE-2012-5908 1 Mybb 1 Mybb 2017-08-29 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in admin/modules/user/users.php in MyBB (aka MyBulletinBoard) 1.6.6 allows remote attackers to inject arbitrary web script or HTML via the conditions[usergroup][] parameter in a search action to admin/index.php.
CVE-2011-5132 1 Mybb 1 Mybb 2017-08-29 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in MyBB before 1.6.5 allows remote attackers to inject arbitrary web script or HTML via vectors related to "usernames via AJAX."