What is the CVSS score of CVE-2026-29039?

CVE-2026-29039 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Changedetection are affected by CVE-2026-29039?

Organizations using changedetection.io versions prior to 0.54.4 face a high-severity vulnerability (CVE-2026-29039) that allows attackers to inject malicious XPath expressions through the…. A patch is available.

Is there a public PoC exploit available for CVE-2026-29039?

Yes, a public proof-of-concept exploit is available for CVE-2026-29039. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-29039?

Within 24 hours: Identify all changedetection.io instances and document versions in use; disable or restrict access to the include_filters feature if immediate patching is not feasible. Within 7 days: Apply vendor patch to upgrade all instances to version 0.54.4 or later; validate deployments post-patch. Within 30 days: Conduct security audit of configurations modified during this vulnerability window and review access logs for potential exploitation attempts.

Changedetection CVE-2026-29039

HIGH

Code Injection (CWE-94)

2026-03-06 security-advisories@github.com

GHSA-6fmw-82m7-jq6p

RCE Code Injection Information Disclosure Changedetection

7.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

PoC Detected

Mar 10, 2026 - 19:37 vuln.today

Public exploit code

Patch released

Mar 10, 2026 - 19:37 nvd

Patch available

CVE Published

Mar 06, 2026 - 07:16 nvd

HIGH 7.5

DescriptionGitHub Advisory

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.

AnalysisAI

Arbitrary file read in changedetection.io prior to 0.54.4 allows unauthenticated remote attackers to access sensitive files by injecting malicious XPath expressions into content filters, exploiting the unparsed-text() function in the elementpath library. The application fails to validate or sanitize XPath input, enabling attackers to read any file accessible to the application process. Public exploit code exists for this vulnerability.

Technical ContextAI

Classified as CWE-94 (Code Injection). Affects 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 expressio