CVE-2026-27645

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

6.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

February 25, 2026

Last Modified

February 25, 2026

CWE ID

CWE-79

Source

NVD

Vendor

dgtlmoon

Product

changedetection.io

External References

https://github.com/dgtlmoon/changedetection.io/commit/a385c89abf44b52fcfa20c7c6a6dd3047c4c1eb5
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-mw8m-398g-h89w

CVE-2026-27645

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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