What is CVE-2026-55742?

CVE-2026-55742 is a critical-severity vulnerability in Cotonti, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.6/10. Published 2026-06-18.

How severe is CVE-2026-55742?

Critical severity. CVSS v3 base score is 9.6 out of 10.

CSRF in Cotonti

CVE-2026-55742

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 (includin…

Vulnerability class: CSRF (Cross-Site Request Forgery)

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Cotonti — versions 1.0.0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (technical-description)
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (product)

Frequently asked questions

What is CVE-2026-55742?: CVE-2026-55742 is a critical-severity vulnerability in Cotonti, classified under Cross-Site Request Forgery (CSRF). CVSS score: 9.6/10. Published 2026-06-18.
How severe is CVE-2026-55742?: Critical severity. CVSS v3 base score is 9.6 out of 10.