Security Resilience

CVE-2026-29065

Path Traversal in Webtechnologies Changedetection ≤ 0.54.4

Public PoCPath Traversal
Published
06 March 2026
Modified
10 March 2026
Patch / advisory
CVSS Score v4 8.8
Click a component to see what it means
Raw vectorCVSS: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
EPSS Score 0.0060 48th percentile
Risk Priority 45 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-29065 is a high-severity Path Traversal (CWE-22) vulnerability in Webtechnologies Changedetection. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique /etc/passwd and /etc/shadow (T1003.008); ranked at the 48th 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 map to AC-3 (Access Enforcement) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

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.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

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…

more

in version 0.54.4.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
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.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-25527Same product: Webtechnologies Changedetection
CVE-2024-50649Shared CWE-22
CVE-2023-24416Shared CWE-22
CVE-2024-9935Shared CWE-22
CVE-2025-23084Shared CWE-22
CVE-2025-32631Shared CWE-22
CVE-2025-3486Shared CWE-22
CVE-2025-34508Shared CWE-22
CVE-2026-39844Shared CWE-22
CVE-2025-6265Shared CWE-22

Affected Assets

webtechnologies
changedetection
≤ 0.54.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Mitigating Controls (NIST 800-53 r5) AI

Enforces the intended directory access authorizations that path traversal would otherwise bypass.

Input validation directly neutralizes special path elements before pathname construction occurs.

Least privilege reduces the impact of any unauthorized file access obtained via traversal.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
blocks

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.

References