Low severityNVD Advisory· Published Dec 2, 2025· Updated Dec 2, 2025
Unauthorized access and subscription vulnerability in Boards
CVE-2025-13870
Description
Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost/server/v8Go | < 8.0.0-20250905150616-ba86dfc5876b | 8.0.0-20250905150616-ba86dfc5876b |
github.com/mattermost/mattermostGo | >= 10.11.0, < 10.11.5 | 10.11.5 |
github.com/mattermost/mattermostGo | >= 10.5.0, < 10.5.13 | 10.5.13 |
Affected products
5- ghsa-coords4 versionspkg:golang/github.com/mattermost/mattermostpkg:golang/github.com/mattermost/mattermost/server/v8pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:rpm/suse/govulncheck-vulndb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6
>= 10.11.0, < 10.11.5+ 3 more
- (no CPE)range: >= 10.11.0, < 10.11.5
- (no CPE)range: < 8.0.0-20250905150616-ba86dfc5876b
- (no CPE)range: < 0.0.20251209T172047-150000.1.127.1
- (no CPE)range: < 0.0.20251209T172047-150000.1.127.1
- Range: 10.11.0
Patches
Vulnerability mechanics
References
4News mentions
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