Mattermost allows reading arbitrary files
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 input when patching and duplicating a board, which allows a user to read any arbitrary file on the system via duplicating a specially crafted block in Boards.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-20051US | medium6.5 | — | ||
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 input when patching and duplicating a board, which allows a use… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/mattermost/mattermostPACKAGE
- https://github.com/mattermost/mattermost-plugin-boards/commit/025ce8d363a054473bc002f43f602a4032d38c06WEB
- https://github.com/mattermost/mattermost/commit/4ed702ccff4ec3c9eff832a9b6060f9f4454141dWEB
- https://mattermost.com/security-updatesWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-20051ADVISORY
scry
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