CVE-2026-100524
Deferred Deferred - Pending Action

Cross-Site Request Forgery in Cotonti Extensions Manager

Publication date: 2026-09-26

Last updated on: 2026-09-26

Assigner: VulnCheck

Description
Cotonti through 1.0.0 contains a cross-site request forgery vulnerability in the extensions manager that allows attackers to perform state-changing actions without anti-CSRF token validation. Attackers can craft links or embed images to force administrators to install, update, pause, or unpause extensions by tricking them into visiting a malicious page while authenticated.

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Meta Information

Published
2026-09-26
Last Modified
2026-09-26
Generated
2026-09-26
AI Q&A
2026-09-26
EPSS Evaluated
N/A
NVD
CVE-2026-100524
EUVD
EUVD-2026-87379

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
cotonti cotonti to 1.0.0 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

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Executive Summary

CVE-2026-100524 is a Cross-Site Request Forgery (CSRF) vulnerability in Cotonti versions up to 1.0.0. It affects the extensions manager where anti-CSRF token validation is missing for state-changing actions. Attackers can trick authenticated administrators into clicking malicious links or embedded images to force actions like installing, updating, or removing extensions without consent.

Detection Guidance

Detecting this CSRF vulnerability requires checking for improper anti-CSRF token validation in Cotonti's extensions manager. Review admin.extensions.php for missing token checks during state-changing actions like extension installation or updates. Monitor network traffic for suspicious POST requests to extension endpoints without valid tokens.

Impact Analysis

If exploited, this vulnerability allows attackers to perform unauthorized actions on your Cotonti site as an administrator. This could lead to malicious extensions being installed, which may compromise site integrity, steal data, or enable further attacks. User interaction is required, typically through social engineering tactics.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR and HIPAA requirements for data protection and access control. Compliance may be impacted if sensitive data is exposed or modified due to the exploitation of this flaw.

Mitigation Strategies

Upgrade Cotonti to the latest version beyond 1.0.0 where this issue is patched. Implement strict input validation for extension management requests. Add CSRF tokens to all state-changing actions in admin.extensions.php. Restrict administrative access to trusted networks only.

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