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TI-2026-23185 Aliases CVE-2026-29039GHSA-6fmw-82m7-jq6p

changedetection.io: XPath - Arbitrary File Read via unparsed-text()

Priority HIGH 73CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00538 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed changedetection.io (dgtlmoon): 0.54.4changedetection.io (PyPI): 0.54.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
dgtlmoonchangedetection.iobefore 0.54.40.54.4Patch availableCNA
—changedetection.io (PyPI)before 0.54.40.54.4Patch availableGHSA-6fmw-82m7-jq6p
  • changedetection.io Vendordgtlmoon Affected before 0.54.4 Fixed in 0.54.4 Patch available CNA
  • changedetection.io (PyPI) Vendor— Affected before 0.54.4 Fixed in 0.54.4 Patch available GHSA-6fmw-82m7-jq6p

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:webtechnologies:changedetection:*:*:*:*:*:*:*:*before 0.54.4Vulnerabledgtlmoon
  • cpe:2.3:a:webtechnologies:changedetection:*:*:*:*:*:*:*:* Versions before 0.54.4 Vulnerable ·dgtlmoon

Remediation

  • Fix · CNA changedetection.io (dgtlmoon) Fixed in 0.54.4
  • Fix · GHSA-6fmw-82m7-jq6p changedetection.io (PyPI) Fixed in 0.54.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29039
  2. 2026-10-03 Alias added: GHSA-6fmw-82m7-jq6p

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2026-27619 changedetection.io has an Authentication Bypass via Decorator Ordering CVSS 3.1CRITICAL 9.8
  • TI-2026-23210 changedetection.io: Zip Slip vulnerability in the backup restore functionality CVSS 4.0HIGH 8.8
  • TI-2026-22073 changedetection.io Vulnerable to Server-Side Request Forgery (SSRF) via Watch URLs CVSS 3.1HIGH 8.6
  • TI-2026-26322 Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters CVSS 4.0HIGH 8.3
  • TI-2026-31955 changedetection.io: Arbitrary Local File Read via crafted backup restore CVSS 3.1HIGH 7.5
  • TI-2026-23184 changedetection.io: Reflected XSS in RSS Tag Error Response CVSS 3.1MEDIUM 6.1
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences