CVE-2026-2461 — Missing authorization check allows unauthorized modification of other users' comments on a board
Mattermost Plugins versions <=11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with edito…
Published: 2026-03-16 · CVSS: 4.3 · CVSS 3.1
Mattermost Plugins versions <=11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with editor permission to modify comments created by other board members. Mattermost Advisory ID: MMSA-2025-00559
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7