Mattermost CVEs
6 matching vulnerabilities mapped to Mattermost’s software or packages, 0 of them in CISA’s Known Exploited Vulnerabilities catalog, newest first. Not a statement that the hosted service was exposed.
CVEs mapped to a company Rewindex tracks (by CVE affected-product data, NVD CPE, vendor advisories and package feeds), every entry in CISA’s Known Exploited Vulnerabilities catalog, and CVEs named in a tracked status incident. Other CVEs are not listed. Same list on the all-vendor CVE index.
Each column is one week (Monday start, UTC), stacked by CVSS severity, by published date or the KEV date added. Dots mark entries added to CISA KEV that week. The last week is still in progress.
CVE-2025-12421 Account Takeover via Code Exchange Endpoint
CVSS 9.9 criticalEPSS 0.42%
CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
CVSS 9.9 criticalEPSS 0.34%
CVE-2025-4981 Path Traversal Leading to RCE by Any Authenticated Mattermost User
CVSS 9.9 criticalEPSS 1.0%
CVE-2025-20051 Arbitrary file read via block duplication in Mattermost Boards
CVSS 9.9 criticalEPSS 0.61%
CVE-2025-24490 SQL Injection in Mattermost Boards via board category ID reordering
CVSS 9.6 criticalEPSS 0.51%
CVE-2025-25279 Arbitrary file read in Mattermost Boards via import & export board archive
CVSS 9.9 criticalEPSS 24.2%
All vendors’ CVEs · JSON · Markdown
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)