CVE-2026-93871
Cotonti through 1.0.0 Stored Open Redirect via Page redir: Prefix
- State
- Published
- Severity
- 5.1 Medium
- Published
- Sep 18, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 18, 2026
Description
Cotonti through 1.0.0 fails to validate redirect destinations in page bodies prefixed with redir:, allowing authenticated users with page creation or edit permissions to store redirects to arbitrary external hosts. Attackers can craft pages on trusted domains that redirect visitors to malicious sites for phishing attacks without administrative privileges.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
Affected Products
| Product | Versions |
|---|---|
CotontiCotonti |
|
References
- https://github.com/Cotonti/Cotonti/issues/1893issue-tracking
- https://github.com/Cotonti/Cotonti/pull/1901patchissue-tracking
- https://github.com/Cotonti/Cotonti/blob/1.0.0/modules/page/inc/page.main.phptechnical-description
- https://github.com/Cotonti/Cotontiproduct
- VulnCheck Advisory: Cotonti through 1.0.0 Stored Open Redirect via Page redir: Prefixthird-party-advisory
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