GHSA-7g3p-35vc-mgjr

Suggest an improvement
Source
https://github.com/advisories/GHSA-7g3p-35vc-mgjr
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-7g3p-35vc-mgjr/GHSA-7g3p-35vc-mgjr.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-7g3p-35vc-mgjr
Aliases
  • CVE-2026-55742
Published
2026-06-18T12:40:25Z
Modified
2026-06-19T15:00:15.354339473Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
Summary
Cotonti: Cross-Site Request Forgery in the administration rights handler
Details

Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to Cross-Site Request Forgery in the administration rights handler. In system/admin/admin.rights.php, the rights update action ('a=update') modifies group access rights (including via cotauthaddgroup) without calling cotcheck_xg() to validate the anti-CSRF token. A remote attacker who lures an authenticated administrator into visiting a malicious page can force the browser to submit a forged request that grants elevated permissions to an attacker-controlled group, escalating privileges to administrator. Because Cotonti administrators can modify templates and configuration, this can be further leveraged toward remote code execution.

Database specific
{
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-19T14:52:08Z",
    "nvd_published_at": "2026-06-18T08:16:34Z",
    "severity": "CRITICAL",
    "cwe_ids": [
        "CWE-352"
    ]
}
References

Affected packages

Packagist / cotonti/cotonti

Package

Name
cotonti/cotonti
Purl
pkg:composer/cotonti%2Fcotonti

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
1.0.0

Affected versions

0.*
0.9.23
0.9.24
0.9.24.1
0.9.24.2
0.9.25
1.*
1.0.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-7g3p-35vc-mgjr/GHSA-7g3p-35vc-mgjr.json"