02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: MattermostImproper Access Control in Mattermost Channel Member API
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.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- 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
- 0.24% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 15.0% of scored records. A rank, not a probability.
- NVD base score
- 3.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- 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: 5.1
- Published
- 2025-05-30 14:22Z1 YR AGO
- Last updated
- 2025-06-12 17:07Z1 YR AGO
- Reserved
- 2025-02-28
- Assigning CNA
- Mattermost
- Record state
- PUBLISHED
- Severity
- Low (CVSS 3.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-863Incorrect AuthorizationClass
- Data version
- 5.1
- Document digest
- d388b7e573e70411e8b4b0c9e7179f54ff03d9b66007e693e2a0202465475382
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
MattermostMattermost10.5.0 to 10.5.3, 9.11.0 to 9.11.12— SRC: CNA
Update Mattermost to versions 10.8.0, 10.7.1, 10.5.4, 9.11.13 or higher.