CVE-2024-29977

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly validatesynced reactions, when shared channels are enabled,which allows a malicious remote to create arbitrary reactions on arbitrary posts
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
MattermostCNA
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
VendorProductVersion
mattermostmattermost
9.5.0 ≤
𝑥
< 9.5.7
mattermostmattermost
9.9.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://mattermost.com/security-updates