CVE-2026-29038
Prior to version 0.54.4, there is a reflected cross-site scripting (XSS) vulnerability identified in the /rss/tag/ endpoint of changedetection.io.
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.28% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- webtechnologies/changedetection
- Source
- security-advisories@github.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.