High severity · published Aug 3, 2026
CVE-2026-69091
Admidio before 5.0.11 Authentication Bypass via forum.php
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
Admidio before 5.0.11 contains an authentication bypass vulnerability in the forum module when configured in login-only mode. The access control logic in modules/forum.php fails to validate the login-only configuration state, allowing unauthenticated attackers to read forum topics and posts by directly accessing the module with read-only parameters.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AD
admidio · Admidio
before 5.0.11 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-69091
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-69091
github.com
https://github.com/Admidio/admidio/security/advisories/GHSA-cf48-6jrq-gjcm
www.vulncheck.com
https://www.vulncheck.com/advisories/admidio-before-authentication-bypass-via-forum-php
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