02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: MattermostMattermost Jira plugin user spoofing enables Jira request forgery.
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.- EPSS probability
- 0.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 17.9% of scored records. A rank, not a probability.
- NVD base score
- 8.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
SCHEMA: 5.2
- Published
- 2025-12-22 11:24Z8 MO AGO
- Last updated
- 2025-12-22 12:59Z8 MO AGO
- Reserved
- 2025-12-08
- Assigning CNA
- Mattermost
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.2)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
- Weaknesses
- CWE-303Incorrect Implementation of Authentication AlgorithmBase
- Data version
- 5.2
- Document digest
- 37a5c5ca569ca4d763f8b07b02a1f670d0deb6c279a33025da9dec2e606a8d9b
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
MattermostMattermost11.1.0 to 11.1.0, 11.0.0 to 11.0.5, 10.12.0 to 10.12.3, 10.11.0 to 10.11.7— SRC: CNA
Update Mattermost to versions 11.2.0, 11.1.1, 11.0.6, 10.12.4, 10.11.8 or higher. Alternatively, update the Mattermost Jira plugin to version 4.4.1 or higher.