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Vulnerability record · CVE-2026-29039 · published 6 March 2026

CVE-2026-29039: Webtechnologies changedetection code injection vulnerability

Webtechnologies · Changedetection

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.

8.8 CVSS 4.0 High EPSS 0.51% · top 59.0% CWE-94 · Code injection
8.8CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/dgtlmoon/changedetection.io/commit/417d57e5749441e4be9acc4010369bded805d66f Patch
https://github.com/dgtlmoon/changedetection.io/releases/tag/0.54.4 ProductRelease Notes
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-6fmw-82m7-jq6p ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-35490Webtechnologies changedetection incorrect authorization vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to 0.54.8, the @login_optionally_required decorator is placed before (…EPSS 0.64%8.8CVE-2026-29065Webtechnologies changedetection path traversal vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to version 0.54.4, a Zip Slip vulnerability in the backup restore func…EPSS 0.56%8.6CVE-2026-27696Webtechnologies changedetection server-side request forgery (ssrf) vulnerabilitychangedetection.io is a free open source web page change detection tool. In versions prior to 0.54.1, changedetection.io is vulnerable to Server-Side…EPSS 0.48%8.3CVE-2026-33981Webtechnologies changedetection information exposure vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to 0.54.7, the `jq:` and `jqraw:` include filter expressions allow use…EPSS 0.48%8.2CVE-2026-41895Webtechnologies changedetection xml external entity (xxe) vulnerabilitychangedetection.io is a free open source web page change detection tool. In 0.54.9 and earlier, xpath_filter() switches to XML mode for XML/RSS conte…EPSS 0.37%7.5CVE-2026-43891Webtechnologies changedetection vulnerabilitychangedetection.io is a free open source web page change detection tool. Prior to 0.55.1, the vulnerability is caused by trusting attacker-controlled…EPSS 0.50%7.1CVE-2026-35000Webtechnologies changedetection vulnerabilityChangeDetection.io versions prior to 0.54.7 contain a protection bypass vulnerability in the SafeXPath3Parser implementation that allows attackers to…EPSS 0.47%6.1CVE-2026-29038Webtechnologies changedetection cross-site scripting vulnerabilitychangedetection.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) vul…EPSS 0.34%

Source: NIST National Vulnerability Database (record CVE-2026-29039), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.