VULNERABILITY INTELLIGENCE

CVE-2026-27645

CVSS score6.1 MEDIUM
EPSS probability0.50%
CISA KEVNot currently listed
Published2026-02-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

changedetection.io is a free open source web page change detection tool. In versions prior to 0.54.1, the RSS single-watch endpoint reflects the UUID path parameter directly in the HTTP response body without HTML escaping. Since Flask returns text/html by default for plain string responses, the browser parses and executes injected JavaScript. Version 0.54.1 contains a fix for the issue.

Weakness classification

  • security-advisories@github.com: CWE-79

Primary references