CVE-2026-93869
mediumCotonti through 1.0.0 contains an open redirect vulnerability in the cot_url_check() function that validates redirect destinations using a regular expression l…
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/Cotonti/Cotonti disclosure@vulncheck.com
- https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php disclosure@vulncheck.com
- https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php disclosure@vulncheck.com
- https://github.com/Cotonti/Cotonti/issues/1891 disclosure@vulncheck.com
- https://github.com/Cotonti/Cotonti/pull/1899 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-co... disclosure@vulncheck.com
- https://github.com/Cotonti/Cotonti/issues/1891 134c704f-9b21-4f2e-91b3-4a467353bcc0