Description
A race condition in Mattermost versions 8.1.x before 8.1.9, and 9.4.x before 9.4.2 allows an authenticated attacker to gain unauthorized access to individual posts' contents via carefully timed post creation while another user deletes posts.
References (1)
Core 1
Core References
Vendor Advisory
https://mattermost.com/security-updates
Scores
CVSS v3
2.6
EPSS
0.0027
EPSS Percentile
50.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-362
CWE-200
Status
published
Products (2)
mattermost/mattermost
9.0.0 - 9.4.2Go
mattermost/mattermost_server
8.1.0 - 8.1.9
Published
Feb 29, 2024
Tracked Since
Feb 18, 2026