Cotonti through 1.0.0 contains a reflected cross-site scripting vulnerability in the search plugin highlight parameter that performs no HTML or… (CVE-2026-100521)
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.
AI Analysis
Technical Summary
Cotonti through version 1.0.0 contains a reflected cross-site scripting vulnerability in the search plugin's highlight parameter. The vulnerability arises because the highlight parameter does not sanitize or escape HTML or JavaScript content, enabling attackers to inject and execute arbitrary scripts in the context of the victim's browser session. This can lead to theft of sensitive information or session hijacking if exploited.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the browsers of users who open maliciously crafted links, including administrators. This can lead to information disclosure and potential session hijacking. The CVSS score of 6.1 (medium severity) reflects the network attack vector, low attack complexity, no privileges required, but user interaction is needed and the impact is limited to confidentiality and integrity.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid clicking on untrusted links containing the highlight parameter and administrators should be cautious with URLs received from untrusted sources.
Cotonti through 1.0.0 contains a reflected cross-site scripting vulnerability in the search plugin highlight parameter that performs no HTML or… (CVE-2026-100521)
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.
CVSS v3.1
Score 6.1medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Cotonti through version 1.0.0 contains a reflected cross-site scripting vulnerability in the search plugin's highlight parameter. The vulnerability arises because the highlight parameter does not sanitize or escape HTML or JavaScript content, enabling attackers to inject and execute arbitrary scripts in the context of the victim's browser session. This can lead to theft of sensitive information or session hijacking if exploited.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the browsers of users who open maliciously crafted links, including administrators. This can lead to information disclosure and potential session hijacking. The CVSS score of 6.1 (medium severity) reflects the network attack vector, low attack complexity, no privileges required, but user interaction is needed and the impact is limited to confidentiality and integrity.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid clicking on untrusted links containing the highlight parameter and administrators should be cautious with URLs received from untrusted sources.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9chp-6f7w-99jg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-100521"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6ab74f31f7a7c54106e13865
Added to database: 09/26/2026, 04:50:57 UTC
Last enriched: 09/26/2026, 04:57:29 UTC
Last updated: 09/27/2026, 04:31:11 UTC
Views: 16
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