CVE-2025-44004: mattermost confluence
CVSS: 7.2v3.1HighAnalyzed
AliasesGHSA-6ff3-jgxh-vffjGO-2025-3865
Published 11-08-2025Last modified 11-08-2025
Vulnerability summary
CVE-2025-44004 is a high (CVSS 7.2) vulnerability in mattermost confluence. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 9.8% of scored vulnerabilities.
CVSS score
7.2/10
010
High · v3.1 (CVE.org)EPSS score
0.21%
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 2 · Related 2Timeline
- 11-08-2025PublishedVulnerability first disclosed.
- 11-08-2025Last modifiedVulnerability information updated.
Description
Mattermost Confluence Plugin version <1.5.0 fails to check the authorization of the user to the Mattermost instance which allows attackers to create a channel subscription without proper authorization via API call to the create channel subscription endpoint.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NSourcesAll 3 agree
- OSV · GoEcosystem advisory · calculated7.2HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
0.00 pp
From 0.20% on 20-09-2026
20-09-202620-10-2026
EPSS score0.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mattermost2 products
- confluence< 1.5.0
- mattermost confluence plugin< 1.5.0
Github.com/mattermost1 product
- mattermost-plugin-confluence< 1.5.0
2 vendors · 3 products
