Description
Admidio is an open-source user management solution. Prior to version 5.0.9, the incomplete SSRF fix in Admidio's fetch_metadata.php validates the resolved IP address but passes the original hostname-based URL to curl_init(), leaving a DNS rebinding TOCTOU window that allows redirecting requests to internal IPs. This issue has been patched in version 5.0.9.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/Admidio/admidio/security/advisories/GHSA-hcjj-chvw-fmw9
X_Refsource_Misc x_refsource_misc
https://github.com/Admidio/admidio/releases/tag/v5.0.9
Scores
CVSS v3
6.8
EPSS
0.0024
EPSS Percentile
14.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (2)
admidio/admidio
0 - 5.0.9Packagist
Admidio/admidio
< 5.0.9
Published
May 07, 2026
Tracked Since
May 07, 2026