CVE-2026-27645 - changedetection.io Vulnerable to Reflected XSS in RSS Single Watch Error Response

CVE ID : CVE-2026-27645 Published : Feb. 25, 2026, 5:17 a.m. | 1 hour, 30 minutes ago 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. Severity: 6.1 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...