High severity · published Feb 24, 2025
CVE-2025-25279
Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker…
7.5
CVSS
24.2%
EPSS
No
On KEV
Description
Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a specially crafted import archive in Boards.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)24.2% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
Mattermost Server · Mattermost
9.11.0 before 9.11.8; 10.2.0 before 10.2.3; 10.3.0 before 10.3.3; 10.4.0 before 10.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-25279
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-25279
Vendor Advisory
https://mattermost.com/security-updates
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