CVE-2026-27645
MEDIUM NUCLEIchangedetection.io <0.54.1 - XSS
Title source: llmDescription
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.
Nuclei Templates (1)
Changedetection.io RSS Single Watch - Cross-Site Scripting
MEDIUMVERIFIEDby 0x_Akoko
Shodan:
http.title:"Change Detection"
FOFA:
title="Change Detection"
Scores
CVSS v3
6.1
EPSS
0.0099
EPSS Percentile
76.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Details
CWE
CWE-79
Status
published
Products (2)
pypi/changedetection.io
0 - 0.53.7PyPI
webtechnologies/changedetection
< 0.54.1
Published
Feb 25, 2026
Tracked Since
Feb 25, 2026