CVE-2026-100521
Cotonti through 1.0.0 Reflected XSS via search highlight parameter
- State
- Published
- Severity
- 5.1 Medium
- Published
- Sep 26, 2026
- Updated
- Sep 29, 2026
- Reserved
- Sep 26, 2026
Description
Cotonti through 1.0.0 contains a reflected cross-site scripting vulnerability in the search plugin highlight parameter that performs no HTML or JavaScript escaping. Attackers can craft malicious links with injected JavaScript in the highlight parameter that executes in the browser of any visitor who opens the link, including administrators.
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/plugins/search/search.header.phptechnical-description
- https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/search/search.page.first.phptechnical-description
- https://github.com/Cotonti/Cotontiproduct
- VulnCheck Advisory: Cotonti through 1.0.0 Reflected XSS via search highlight parameterthird-party-advisory
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