CVEvulnerability
CVE-2026-93869
5.3 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-09-18
- Last modified
- 2026-09-22
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-601
Description
Cotonti through 1.0.0 contains an open redirect vulnerability in the cot_url_check() function that validates redirect destinations using a regular expression lacking an end-of-string anchor. Attackers can bypass the redirect guard by supplying hostnames beginning with the site domain to redirect users to attacker-controlled hosts through the ratings plugin or other redirect callers.
Related
Weakness · CWE (1)
- CWE-601 URL Redirection to Untrusted Site weakness
References
- https://github.com/Cotonti/Cotonti github.com
- https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php github.com
- https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php github.com
- https://github.com/Cotonti/Cotonti/issues/1891 github.com
- https://github.com/Cotonti/Cotonti/pull/1899 github.com
- https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-cot-url-check-regex www.vulncheck.com
- https://github.com/Cotonti/Cotonti/issues/1891 github.com