How serious is CVE-2026-29039?

This vulnerability has a CVSS score of 8.8 out of 10, classified as HIGH severity. No public exploit code has been identified yet.

Which products are affected by CVE-2026-29039?

CVE-2026-29039 affects webtechnologies changedetection. Check the full CVE details for specific version information.

How do I fix CVE-2026-29039?

To remediate CVE-2026-29039, check for security patches from webtechnologies. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-29039

High

|8.8

No Exploit

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker to read any file on the server where the changedetection.io application is running by using specially crafted XPath expressions. It can be exploited by anyone who can access the application and does not require any special permissions, making it a significant risk if not updated to the latest version.

Technical 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 Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

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:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$4,789($1K-$5K)

Vendor Response

Grade APatched in 4 days

Quick Information

Published

Mar 6, 2026

about 1 month ago

Last Modified

Mar 10, 2026

28 days ago

Vendor

webtechnologies

Product

changedetection

Related Vulnerabilities

CVE-2026-29065High

This vulnerability allows an attacker to overwrite files on the server by uploading a specially crafted ZIP file, which can lead to unauthorized changes or access to sensitive data. It affects versions prior to 0.54.4 of the changedetection tool, so users should upgrade to the latest version to protect against this risk.

CVE-2026-29038Medium

An attacker can exploit a vulnerability in changedetection.io to inject malicious JavaScript into the web page, which could then be executed in the browser of anyone visiting that page. This happens when a user accesses a specific URL with a manipulated tag identifier, allowing the attacker to run harmful scripts without needing any special access.

CVE-2023-24769Medium

This vulnerability allows attackers to run harmful scripts on a user's browser by tricking them into clicking a specially crafted link when adding a new change detection watch. It requires the attacker to manipulate the URL, making it possible for them to target users of the affected software version before an update is applied.