CVE-2026-93851
CVE-2026-93851 · Path traversal in Mattermost Agents plugin mention reminder allows plugin replacement via crafted post
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Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10 fail to validate the target post ID in the Agents plugin's mention reminder component, which allows an authenticated user who can post in a channel visible to a system administrator to cause the administrator's browser to send an unintended API request, resulting in replacement of an installed plugin and code execution on the server, via a crafted post containing a forged mention reminder that the administrator clicks. Mattermost Advisory ID: MMSA-2026-00742
CVSS 8.0 · Élevée · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Produits et versions concernés
mattermost
- Versions du logiciel
- ≥ 11.9.0, ≤ 11.9.1: Concernée (semver)
- ≥ 11.8.0, ≤ 11.8.5: Concernée (semver)
- ≥ 11.7.0, ≤ 11.7.10: Concernée (semver)
- 11.10.0: Non concernée
- 11.9.2: Non concernée
- 11.8.6: Non concernée
- 11.7.11: Non concernée
Mettez à jour vers 11.7.11; Mettez à jour vers 11.8.6; Mettez à jour vers 11.9.2