CVE-2024-2445 Reflected XSS in Mattermost Jira plugin
Attackers can execute arbitrary scripts in users' browsers via reflected XSS in the Mattermost Jira plugin, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-2445?
CVE-2024-2445 is a medium-severity cross-site scripting vulnerability in Mattermost Mattermost Server, published on 15 Mar 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Mattermost Jira plugin versions shipped with Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to escape user-controlled outputs when generating HTML pages, which allows an attacker to perform reflected cross-site scripting attacks against the users of the Mattermost server.
Which versions are affected by CVE-2024-2445?
1 open source package ship an affected version, including mattermost. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mattermost Bitnami | From 8.1.0 | 8.1.10, 9.2.6, 9.3.2, 9.4.3 |
Products include Mattermost Mattermost Server.
How do I fix CVE-2024-2445?
Upgrade mattermost to a fixed version for your release line: 8.1.10, 9.2.6, 9.3.2 or 9.4.3.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2024-2445 being exploited?
There is no known exploitation of CVE-2024-2445 in the wild and no public exploit code.
Other vulnerabilities in Mattermost Mattermost Server
- CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
- CVE-2025-12421 Account Takeover via Code Exchange Endpoint
- CVE-2025-4981 Path Traversal Leading to RCE by Any Authenticated Mattermost User
- CVE-2025-20051 Arbitrary file read via block duplication in Mattermost Boards
- CVE-2025-25279 Arbitrary file read in Mattermost Boards via import & export board archive
Sources
Also known as BIT-mattermost-2024-2445, GHSA-m6gm-m2m7-vwxg.