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-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-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-2021-27949 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-2018-1000503 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-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-2018-14724 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-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-2017-8103 1 Mybb 1 Mybb 2017-04-27 4.3 MEDIUM 6.1 MEDIUM
In MyBB before 1.8.11, the Email MyCode component allows XSS, as demonstrated by an onmouseover event.
CVE-2016-9411 1 Mybb 2 Merge System, Mybb 2017-02-05 5.0 MEDIUM 5.3 MEDIUM
The Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to obtain the installation path via vectors involving sending mails.
CVE-2016-9413 1 Mybb 2 Merge System, Mybb 2017-02-05 4.3 MEDIUM 6.5 MEDIUM
The Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 allows remote attackers to conduct clickjacking attacks via unspecified vectors.
CVE-2015-8975 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in the error handler in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
CVE-2015-8976 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.6.18 and 1.8.x before 1.8.6 and MyBB Merge System before 1.8.6 might allow remote attackers to inject arbitrary web script or HTML via vectors related to "old upgrade files."
CVE-2016-9407 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors involving Mod control panel logs.
CVE-2016-9406 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in the User control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
CVE-2016-9419 1 Mybb 1 Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
CVE-2016-9408 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in the Mod control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors involving editing users.
CVE-2016-9405 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in member validation in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
CVE-2016-9404 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors related to login.
CVE-2016-9409 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.7 and MyBB Merge System before 1.8.7 might allow remote attackers to inject arbitrary web script or HTML via vectors involving pruning logs.
CVE-2016-9421 1 Mybb 2 Merge System, Mybb 2017-02-03 4.3 MEDIUM 6.1 MEDIUM
Cross-site scripting (XSS) vulnerability in the Users module in the Admin control panel in MyBB (aka MyBulletinBoard) before 1.8.8 and MyBB Merge System before 1.8.8 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.