CVE-2026-29038

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

changedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, there is a reflected cross-site scripting (XSS) vulnerability identified in the /rss/tag/ endpoint of changedetection.io. The tag_uuid path parameter is reflected 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. This issue has been patched in version 0.54.4.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
dgtlmoon	changedetection.io	< 0.54.4

References

https://github.com/dgtlmoon/changedetection.io/commit/ec7d56f85d1e9690fca7cb4711c1fb20dffec780Patch
https://github.com/dgtlmoon/changedetection.io/releases/tag/0.54.4Product, Release Notes
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-8whx-v8qq-pq64Exploit, Mitigation, Vendor Advisory

Timeline

Published: Mar 6, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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