{"cve":"CVE-2026-29038","nvd":{"published":"2026-03-06T07:16:01.393","modified":"2026-06-17T10:29:29.347","status":"Analyzed","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/dgtlmoon/changedetection.io/commit/ec7d56f85d1e9690fca7cb4711c1fb20dffec780","https://github.com/dgtlmoon/changedetection.io/releases/tag/0.54.4","https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-8whx-v8qq-pq64"],"products":["webtechnologies:changedetection"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-29038","score":0.00294,"percentile":0.22018,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8whx-v8qq-pq64","url":"https://osv.dev/vulnerability/GHSA-8whx-v8qq-pq64","summary":"changedetection.io has Reflected XSS in its RSS Tag Error Response","modified":"2026-07-13T07:26:50.318400804Z","packages":[{"ecosystem":"PyPI","name":"changedetection-io","purl":"pkg:pypi/changedetection-io","ranges":["<0.54.4"],"fixed":["0.54.4"]}]},{"id":"PYSEC-2026-2127","url":"https://osv.dev/vulnerability/PYSEC-2026-2127","summary":"","modified":"2026-07-13T07:15:17.112167238Z","packages":[{"ecosystem":"PyPI","name":"changedetection-io","purl":"pkg:pypi/changedetection-io","ranges":["<0.54.4"],"fixed":["0.54.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}