CVE-2026-29038
Medium · 6.1CVSS
6.1
EPSS
0.4%
Published
Mar 6, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| PyPI | changedetection-io | 0 | 0.54.4 |
Related vulnerabilities
- GHSA-8whx-v8qq-pq64 changedetection.io has Reflected XSS in its RSS Tag Error Response Same vulnerability
- CVE-2026-29065 changedetection.io is a free open source web page change detection tool. Also affects changedetection-io
- CVE-2026-29039 changedetection.io is a free open source web page change detection tool. Also affects changedetection-io
- GHSA-25g8-2mcf-fcx9 changedetection.io has Zip Slip vulnerability in the backup restore functionality Also affects changedetection-io
- GHSA-6fmw-82m7-jq6p changedetection.io vulnerable to XPath - Arbitrary File Read via unparsed-text() Also affects changedetection-io
- GHSA-3c45-4pj5-ch7m changedetection.io is Vulnerable to SSRF via Watch URLs Also affects changedetection-io
- GHSA-mw8m-398g-h89w changedetection.io Vulnerable to Reflected XSS in RSS Single Watch Error Response Also affects changedetection-io
- CVE-2026-27696 changedetection.io is a free open source web page change detection tool. Also affects changedetection-io