Advisories

Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex

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severity
medium
date
Affecting
  • Cotonti <= 1.0.0

CWE
  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
CVSS
5.3
CVSS V4 Vector
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
Credit
Harsh Raj Singhania
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.

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