CVE-2026-29038 | THREATINT

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.

PUBLISHED Reserved 2026-03-03 | Published 2026-03-06 | Updated 2026-03-06 | Assigner GitHub_M

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

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 0.54.4

affected

References

github.com/...ion.io/security/advisories/GHSA-8whx-v8qq-pq64

github.com/...ommit/ec7d56f85d1e9690fca7cb4711c1fb20dffec780

github.com/dgtlmoon/changedetection.io/releases/tag/0.54.4

cve.org (CVE-2026-29038)

nvd.nist.gov (CVE-2026-29038)

Download JSON