Cyber Resilience

CVE-2025-5961

HighPublic PoC

Published: 03 July 2025

Published
03 July 2025
Modified
09 July 2025
KEV Added
Patch
CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0202 84.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-5961 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Wpvivid Migration\, Backup\, Staging. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 15.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis

The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the wpvivid_upload_import_files function. The issue affects all versions up to and including 0.9.116 and is tracked as CWE-434 with a CVSS 3.1 score of 7.2.

Authenticated attackers with Administrator-level access can exploit the flaw over the network to upload arbitrary files to the server. Successful exploitation may enable remote code execution on instances running the NGINX web server, while the existing .htaccess file in the upload directory blocks access on Apache servers.

A patch addressing the vulnerability is available via the referenced WordPress plugin changeset, which updates the affected export-import class to enforce proper file type checks. Administrators should apply the fix promptly by updating the plugin beyond version 0.9.116.

EPSS scores remain low and essentially flat at a current value of 0.0202 with a peak of 0.0204, indicating limited observed exploitation interest to date.

EU & UK References

Vulnerability details

The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'wpvivid_upload_import_files' function in all versions up to, and including, 0.9.116. This makes it possible…

more

for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. NOTE: Uploaded files are only accessible on WordPress instances running on the NGINX web server as the existing .htaccess within the target file upload folder prevents access on Apache servers.

CWE(s)

Related Threats

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.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
Why these techniques?

The vulnerability enables authenticated (Admin+) attackers to perform arbitrary file uploads to a web-accessible directory on NGINX-hosted WordPress sites, facilitating remote code execution via web shells. This directly maps to T1190 (Exploit Public-Facing Application) for the web plugin exploitation and T1100/T1505.003 (Web Shell) for deploying executable malicious files.

Affected Assets

wpvivid
migration\, backup\, staging
≤ 0.9.117

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-434

Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.

addresses: CWE-434

Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.

addresses: CWE-434

Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.

addresses: CWE-434

Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.

References