Vulnerabilities (CVE)

Filtered by vendor Mattermost Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-20887 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.7.1, 5.6.4, 5.5.3, and 4.10.6. It does not honor flags API permissions when deciding whether a user can receive intra-team posts.
CVE-2019-20884 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.8.0. It allows attackers to partially attach a file to more than one post.
CVE-2019-20878 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. Changes, within the application, to e-mail addresses are mishandled.
CVE-2019-20873 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. It allows attackers to obtain sensitive information during user activation/deactivation.
CVE-2019-20869 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.10.0, 5.9.1, 5.8.2, and 4.10.9. A non-member could change the Update/Patch Channel endpoint for a private channel.
CVE-2019-20867 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.11.0. An attacker can interfere with a channel's post loading via one crafted post.
CVE-2020-14460 1 Mattermost 1 Mattermost Server 2021-07-21 4.0 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 5.19.0, 5.18.1, 5.17.3, 5.16.5, and 5.9.8. Creation of a trusted OAuth application does not always require admin privileges, aka MMSA-2020-0001.
CVE-2020-14457 1 Mattermost 1 Mattermost Server 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the update_team WebSocket event, aka MMSA-2020-0012.
CVE-2019-20850 1 Mattermost 1 Mattermost Mobile 2021-07-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Mobile Apps before 1.26.0. A view cache can persist on a device after a logout.
CVE-2017-18878 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. Knowledge of a session ID allows revoking another user's session.
CVE-2018-21256 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions (for group-message channel creation) via the Group message slash command.
CVE-2018-21252 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.2, 5.1.1, 5.0.3, and 4.10.3. Attackers could use multiple e-mail addresses to bypass a domain-based policy for signups.
CVE-2017-18872 1 Mattermost 1 Mattermost Server 2020-06-30 3.5 LOW 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.4.3 and 4.3.3. Attackers could reconfigure an OAuth app in some cases where Mattermost is an OAuth 2.0 service provider.
CVE-2018-21265 1 Mattermost 1 Mattermost Desktop 2020-06-30 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Desktop App before 4.0.0. It mishandled the Same Origin Policy for setPermissionRequestHandler (e.g., video, audio, and notifications).
CVE-2018-21261 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. An e-mail invite accidentally included the team invite_id, which leads to unintended excessive invitation privileges.
CVE-2018-21259 1 Mattermost 1 Mattermost Server 2020-06-30 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.10.1, 4.9.4, and 4.8.2. It allows attackers to cause a denial of service (application hang) via a malformed link in a channel.
CVE-2018-21257 1 Mattermost 1 Mattermost Server 2020-06-30 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions (for setting a channel header) via the Channel header slash command API.
CVE-2018-21255 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.1. Non-members of a channel could use the Channel PATCH API to modify that channel.
CVE-2018-21254 1 Mattermost 1 Mattermost Server 2020-06-30 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.1. An attacker can bypass intended access control (for direct-message channel creation) via the Message slash command.
CVE-2017-18873 1 Mattermost 1 Mattermost Server 2020-06-29 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to cause a denial of service (channel invisibility) via a misformatted post.
CVE-2017-18874 1 Mattermost 1 Mattermost Server 2020-06-29 5.5 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal.
CVE-2018-21250 1 Mattermost 1 Mattermost Server 2020-06-29 4.3 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 5.2.2, 5.1.2, and 4.10.4. It allows remote attackers to cause a denial of service (memory consumption) via crafted image dimensions.
CVE-2019-20866 1 Mattermost 1 Mattermost Server 2020-06-29 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled.
CVE-2019-20860 1 Mattermost 1 Mattermost Server 2020-06-29 4.3 MEDIUM 5.5 MEDIUM
An issue was discovered in Mattermost Server before 5.14.0, 5.13.3, 5.12.6, and 5.9.4. It allows remote attackers to cause a denial of service (application hang) via a crafted SVG document.
CVE-2017-18870 1 Mattermost 1 Mattermost Server 2020-06-29 3.5 LOW 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, and 4.3.4. It mishandled webhook access control in the EnableOnlyAdminIntegrations case.
CVE-2017-18891 1 Mattermost 1 Mattermost Server 2020-06-29 5.8 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.
CVE-2017-18876 1 Mattermost 1 Mattermost Server 2020-06-29 4.0 MEDIUM 4.9 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file.
CVE-2017-18875 1 Mattermost 1 Mattermost Server 2020-06-29 4.0 MEDIUM 4.9 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can create arbitrary files.
CVE-2017-18890 1 Mattermost 1 Mattermost Server 2020-06-29 4.3 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows an attacker to create a button that, when pressed by a user, launches an API request.
CVE-2018-21253 1 Mattermost 1 Mattermost Server 2020-06-26 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 5.1, 5.0.2, and 4.10.2. An attacker could use the invite_people slash command to invite a non-permitted user.
CVE-2017-18880 1 Mattermost 1 Mattermost Server 2020-06-26 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the title_link field of a Slack attachment.
CVE-2017-18889 1 Mattermost 1 Mattermost Server 2020-06-26 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. An attacker could create fictive system-message posts via webhooks and slash commands, in the v3 or v4 REST API.
CVE-2017-18879 1 Mattermost 1 Mattermost Server 2020-06-26 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the author_link field of a Slack attachment.
CVE-2017-18882 1 Mattermost 1 Mattermost Server 2020-06-26 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS can occur via OpenGraph data.
CVE-2017-18881 1 Mattermost 1 Mattermost Server 2020-06-26 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via a goto_location response to a slash command.
CVE-2017-18887 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It discloses the team creator's e-mail address to members.
CVE-2017-18897 1 Mattermost 1 Mattermost Server 2020-06-26 5.8 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. It mishandles a deny action for a redirection.
CVE-2017-18898 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows crafted posts that potentially cause a web browser to hang.
CVE-2016-11065 1 Mattermost 1 Mattermost Server 2020-06-26 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in Mattermost Server before 3.3.0. An attacker could use the WebSocket feature to send pop-up messages to users or change a post's appearance.
CVE-2016-11062 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 3.5.1. E-mail address verification can be bypassed.
CVE-2016-11072 1 Mattermost 1 Mattermost Server 2020-06-26 6.4 MEDIUM 6.5 MEDIUM
An issue was discovered in Mattermost Server before 3.0.2. The purposes of a session ID and a Session Token were mishandled.
CVE-2017-18901 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover a team invite ID by requesting a JSON document.
CVE-2017-18899 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It mishandles IP-based rate limiting.
CVE-2017-18896 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to add DEBUG lines to the logs via a REST API version 3 logging endpoint.
CVE-2017-18895 1 Mattermost 1 Mattermost Server 2020-06-26 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to obtain sensitive information (user statuses) via a REST API version 4 endpoint.
CVE-2017-18892 1 Mattermost 1 Mattermost Server 2020-06-26 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. E-mail templates can have a field in which HTML content is not neutralized.
CVE-2017-18916 1 Mattermost 1 Mattermost Server 2020-06-25 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permission restriction.
CVE-2017-18919 1 Mattermost 1 Mattermost Server 2020-06-25 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 3.7.0 and 3.6.3. Attackers can use the API for unauthenticated team creation.
CVE-2017-18914 1 Mattermost 1 Mattermost Server 2020-06-25 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. An external link can occur on an error page even if it is not on an allowlist.
CVE-2017-18893 1 Mattermost 1 Mattermost Server 2020-06-25 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS.