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7.1
JanStudio Gecko Cross-Site Scripting: Malicious Code Injection
CVE-2026-27375
Summary
A security flaw in Gecko could allow hackers to inject malicious code into web pages. This affects users of Gecko versions from n/a to 1.9.8. To protect your website, update to a newer version of Gecko.
Original title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JanStudio Gecko gecko allows Reflected XSS.This issue affects Gecko: from n/a through <= 1.9.8.
Original description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JanStudio Gecko gecko allows Reflected XSS.This issue affects Gecko: from n/a through <= 1.9.8.
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
Published: 5 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026