CVE-2026-100522
Cotonti through 1.0.0 Reflected XSS via message.php lng parameter
- State
- Published
- Severity
- 5.1 Medium
- Published
- Sep 26, 2026
- Updated
- Sep 28, 2026
- Reserved
- Sep 26, 2026
Description
Cotonti through 1.0.0 contains a reflected cross-site scripting vulnerability in message.php where the lng parameter is not properly escaped before output in the confirmation dialog. Unauthenticated attackers can craft malicious links with script payloads in the lng parameter to execute arbitrary JavaScript in victim browser sessions.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
CotontiCotonti |
|
References
- https://github.com/Cotonti/Cotonti/issues/1907issue-tracking
- https://github.com/Cotonti/Cotonti/pull/1908issue-trackingpatch
- https://github.com/Cotonti/Cotonti/blob/1.0.0/message.phptechnical-description
- https://github.com/Cotonti/Cotontiproduct
- VulnCheck Advisory: Cotonti through 1.0.0 Reflected XSS via message.php lng parameterthird-party-advisory
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