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Medium severity · published Aug 11, 2025
CVE-2025-54458
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…
5.0
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Confluence · Mattermost
before 1.5.0 · source: NVD
Affected product
CO
Confluence
Mattermost
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-54458
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-54458
Vendor Advisory
https://mattermost.com/security-updates
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