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Fencer Intel
medium 5.2

CVE-2026-53760 json

Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests

published 4mo ago modified 2mo ago also EUVD-2026-71630 , GHSA-hm42-q32m-vj4f

cvss
5.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

Admidio is an open-source user management solution. In versions 5.0.11 and prior, the modules/plugins.php endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include SameSite=Lax session cookies. An attacker crafts a malicious page that, when an authenticated administrator visits it, triggers arbitrary plugin operations. The uninstall operation executes DROP TABLE SQL scripts and destroys plugin data. This issue has been patched via commit 056b1bd.

Patch / fix

Is CVE-2026-53760 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L
GitHub 3.1 5.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L

Affected packages

ecosystem package affected fixed in
packagist admidio/admidio
<=5.0.11
 no fix listed

Affected products

  • Admidio admidio

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.