CVE-2025-1412: mattermost Session Fixation
CVSS: 8.8v3.1HighAnalyzed
AliasesGHSA-rhvr-6w8c-6v7wGO-2025-3482CGA-mxmg-25qx-q63xCGA-v7r7-3xx8-5rq8
Published 24-02-2025Last modified 24-02-2025
Vulnerability summary
CVE-2025-1412 is a high (CVSS 8.8) Session Fixation vulnerability in mattermost. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.3% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 6Timeline
- 24-02-2025PublishedVulnerability first disclosed.
- 24-02-2025Last modifiedVulnerability information updated.
Description
Mattermost versions 9.11.x <= 9.11.6, 10.4.x <= 10.4.1 fail to invalidate all active sessions when converting a user to a bot, with allows the converted user to escalate their privileges depending on the permissions granted to the bot.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources4 sources · 3.1–8.8
- CVE.orgCNA3.1LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · GoEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
- OSV · ChainguardEcosystem advisory · calculated3.1LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:NDiffers
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
0.00 pp
From 0.26% on 19-09-2026
19-09-202619-10-2026
EPSS score0.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard2 products
- mattermost-fips-10.5All versions (No fix recorded)
- mattermost-fips-10.5-compatAll versions (No fix recorded)
Github.com/mattermost/mattermost-server2 products
- v5All versions (No fix recorded)
- v6All versions (No fix recorded)
Mattermost2 products
- mattermost≥ 9.11.0, ≤ 9.11.6 | ≥ 10.4.0, ≤ 10.4.1
- mattermost_server≥ 9.11.0, < 9.11.7 | ≥ 10.4.0, < 10.4.2
Github.com/mattermost1 product
- mattermost-server≥ 10.4.0-rc1+incompatible, < 10.4.2+incompatible
Github.com/mattermost/mattermost/server1 product
- v8≥ 10.4.0-rc1, < 10.4.2 | ≥ 9.11.0-rc1, < 9.11.7 | < 8.0.0-20241217145510-faa7e4f2ea0c
5 vendors · 8 products
