CVE-2026-100524

Cotonti through 1.0.0 Cross-Site Request Forgery via Extensions Manager

Published Sep 26, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Analysis

AI-generated

Technical impact

Cotonti versions up to 1.0.0 lack anti‑CSRF token validation in the extensions manager. This allows an attacker who can trick an authenticated administrator into visiting a crafted link or embedding an image to trigger state‑changing actions such as installing, updating, pausing, or unpausing extensions. The resulting unauthorized configuration changes compromise the integrity of the system and could enable further malicious activity.

Affected Systems

Cotonti Cotonti up to and including version 1.0.0 is impacted. No further version specifics are listed in the data provided.

Risk and Exploitability

The vulnerability receives a CVSS score of 5.3, indicating moderate severity. Exploitation requires the attacker to entice a legitimate admin to visit a malicious page, a common social‑engineering scenario, and there is no publicly available exploit code or tool. Because the EPSS score is not available and the issue is not listed in CISA KEV, the likelihood of widespread exploitation remains low, but the potential impact to administrative control warrants prompt attention.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Cotonti to the latest release that includes CSRF protection for the extensions manager (for example, 1.0.1 or newer).
  • Apply the specific patch or pull‑request fix referenced in the system’s issue tracker to reintroduce CSRF token validation.
  • Restrict administrative access to trusted internal networks or VPNs and disable external extension installation from untrusted sources.

Generated by OpenCVE AI on September 26, 2026 at 02:30 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Cotonti through 1.0.0 Cross-Site Request Forgery via Extensions Manager
First Time appeared Cotonti
Cotonti cotonti Siena
Weaknesses CWE-352
CPEs cpe:2.3:a:cotonti:cotonti_siena:*:*:*:*:*:*:*:*
Vendors & Products Cotonti
Cotonti cotonti Siena
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}

Weaknesses
  • CWE-352

    Cross-Site Request Forgery (CSRF)

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 30, 2026, 12:16 AM
Reserved
Sep 26, 2026, 12:48 AM
Status
Deferred
Published
Sep 26, 2026, 1:17 AM
Modified
Sep 30, 2026, 1:16 AM