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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-601"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93869.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.0"
},
{
"fixed": "1.0.0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}