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Description

Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to Cross-Site Request Forgery in the administration configuration handler. In system/admin/admin.config.php, the configuration update action ('a=update') processes POST data via cot_config_update_options() without calling cot_check_xg() to validate the anti-CSRF token (the 'x' parameter), unlike other admin handlers (e.g. admin.structure.php, admin.cache.php). A remote attacker who lures an authenticated administrator into visiting a malicious page can force the browser to submit a forged request that modifies arbitrary core, module, or plugin configuration options, which can be leveraged to weaken security or enable further compromise.

PUBLISHED Reserved 2026-06-17 | Published 2026-06-18 | Updated 2026-06-18 | Assigner TuranSec




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Default status
affected

1.0.0 (semver)
affected

Credits

Saidakbarxon Maxsudxonov (sermikro), Innova Networks finder

References

github.com/...9dac1435c7c52b30/system/admin/admin.config.php (Vulnerable code: system/admin/admin.config.php) technical-description

github.com/Cotonti/Cotonti product

cve.org (CVE-2026-55741)

nvd.nist.gov (CVE-2026-55741)

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