CVE-2026-55742
Cotonti CSRF in admin.rights.php allows privilege escalation
Description
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 cot_auth_add_group) without calling cot_check_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.
INFO
Published Date :
June 18, 2026, 6:05 a.m.
Last Modified :
June 18, 2026, 6:05 a.m.
Remotely Exploit :
Yes !
Source :
TuranSec
Affected Products
The following products are affected by CVE-2026-55742
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c | ||||
| CVSS 4.0 | CRITICAL | 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c |
Solution
- Apply the latest security patch for Cotonti.
- Ensure all 'a=update' actions validate anti-CSRF tokens.
- Review access controls for group modifications.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55742 vulnerability anywhere in the article.