CVE-2026-29039

The record

changedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, the changedetection.io application allows users to specify XPath expressions as content filters via the include_filters field. These XPath expressions are processed using the elementpath library which implements XPath 3.0/3.1 specification. XPath 3.0 includes the unparsed-text() function which can read arbitrary files from the filesystem. The application does not validate or sanitize XPath expressions to block dangerous functions, allowing an attacker to read any file accessible to the application process. This issue has been patched in version 0.54.4.

Affected packages

Related vulnerabilities

• GHSA-6fmw-82m7-jq6p changedetection.io vulnerable to XPath - Arbitrary File Read via unparsed-text() Same vulnerability
• CVE-2026-29065 changedetection.io is a free open source web page change detection tool. Also affects changedetection-io
• CVE-2026-29038 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-8whx-v8qq-pq64 changedetection.io has Reflected XSS in its RSS Tag Error Response 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