CVE-2026-29065

CriticalPublic PoC

Published: 06 March 2026

Published

06 March 2026

Modified

10 March 2026

KEV Added

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Patch

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CVSS Score 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Score 0.0003 8.5th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-29065 is a critical-severity Path Traversal (CWE-22) vulnerability in Webtechnologies Changedetection. Its CVSS base score is 9.1 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 8.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Requires validation of ZIP archive paths during backup restore to block path traversal and prevent arbitrary file overwrites.

SI-2 Flaw Remediation good match

prevent

Mandates timely identification, reporting, and patching of flaws like this Zip Slip vulnerability in the backup restore function.

SI-7 Software, Firmware, and Information Integrity partial match

detect

Provides integrity monitoring to detect unauthorized file modifications resulting from successful Zip Slip exploitation.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

The vulnerability is a path traversal (Zip Slip) in a public-facing web application's backup restore feature, allowing remote unauthenticated arbitrary file overwrites, directly mapping to exploitation of public-facing applications.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

changedetection.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 functionality allows arbitrary file overwrite via path traversal in uploaded ZIP archives. This issue has been patched…

in version 0.54.4.

Deeper analysisAI

CVE-2026-29065 is a Zip Slip vulnerability (CWE-22) affecting changedetection.io, a free open source web page change detection tool, in versions prior to 0.54.4. The flaw exists in the backup restore functionality, where path traversal in uploaded ZIP archives enables arbitrary file overwrites. It has a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), indicating critical severity due to high impacts on confidentiality and integrity.

A remote unauthenticated attacker can exploit this vulnerability by uploading a malicious ZIP archive during the backup restore process. Successful exploitation allows arbitrary file overwrites on the server, potentially leading to full compromise if critical files like configuration or executables are targeted.

The issue has been addressed in version 0.54.4. Mitigation involves upgrading to this patched release, as detailed in the GitHub security advisory (GHSA-25g8-2mcf-fcx9), the specific commit (1d7d812eb0faab37042246e2fbce04f29bb1b3aa), and the release notes.