Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests (CVE-2026-53760) | HOL Guard CVE

Medium · CVSS 5.2CVE-2026-53760GHSA-HM42-Q32M-VJ4F

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

Answer in brief

CVE-2026-53760 records a Medium severity (CVSS 5.2) vulnerability in Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests. The current sources do not mark it as known exploited. The current feed maps admidio/admidio (composer), Admidio/admidio (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2026Updated Sep 9, 2026Source checked Sep 17, 2026First seen by HOL Jul 9, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.2
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps admidio/admidio (composer), Admidio/admidio (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
admidio/admidiocomposer	<=5.0.11	Not reported
Admidio/admidiogeneric	< 056b1bd9f995437395e337d2c73a32e5c96ee616	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for admidio/admidio, Admidio/admidio.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 9, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.