Which products and versions are affected by CVE-2026-0829?

Affected: nmedia-user-file-uploader (wordpress-plugin); Frontend File Manager Plugin. The full list is in the CVE brief.

Is CVE-2026-0829 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-0829 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-0829?

Public exploit code is available.

Is there a fix for CVE-2026-0829?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2026-0829 be patched?

Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

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Vulnerability Intelligence

CVE-2026-0829

Q: What is CVE-2026-0829?

The Frontend File Manager Plugin WordPress plugin through 23.5 allows unauthenticated users to send emails through the site without any security checks.

MediumPublic exploit

Frontend File Manager Plugin <= 23.5 - Unauthenticated Arbitrary Email Sending

Published Feb 17, 2026 · Updated May 19, 2026 · Also known as 4cbc0dd4-4dea-4890-95d0-9531a669b95d

Key Facts

Routine patching

CVE-2026-0829 is a medium-severity vulnerability (CVSS 5.8 v3.1) affecting nmedia-user-file-uploader (wordpress-plugin), Frontend File Manager Plugin.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 0.7% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

CVSS v3.1

5.8

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

EPSS (30-day exploit likelihood)

0.7%

Higher than 53.6% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2026-0829 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

The Frontend File Manager Plugin WordPress plugin through 23.5 allows unauthenticated users to send emails through the site without any security checks. This lets attackers use the WordPress site as an open relay for spam or phishing emails to anyone. Attackers can also guess file IDs to access and share uploaded files without permission, exposing sensitive information.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
nmedia-user-file-uploaderwordpress-plugin	See advisory	n/a
Frontend File Manager Plugin	See advisory	n/a

Timeline

Publicly disclosed
Feb 17, 2026
Last updated
May 19, 2026

Weakness Type

CWE-862 Missing Authorization

References

FAQ

Common Questions.

The Frontend File Manager Plugin WordPress plugin through 23.5 allows unauthenticated users to send emails through the site without any security checks.
Affected: nmedia-user-file-uploader (wordpress-plugin); Frontend File Manager Plugin. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Is CVE-2026-0829 Running On Your Attack Surface?

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