PatchTheCVECVE-2025-54458: Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space whic
CVE-2025-54458 is a medium-severity flaw (CVSS 5.0) affecting confluence. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription endpoint.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.0 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 88%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2025-08-11 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-54458?
confluence: upgrade to 1.5.0. Exact commands for each OS are on this page.
Is CVE-2025-54458 being exploited?
CVE-2025-54458 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-54458 affect?
CVE-2025-54458 affects confluence. Severity is medium (CVSS 5.0). Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription en
How urgent is CVE-2025-54458?
Priority 20/100. No elevated risk signals yet.
Software pages
Atlassian Confluence vulnerabilities · Mattermost vulnerabilities
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