5.8

CVE-2026-0829: unknown frontend file manager plugin Missing Authorization

CVSS: 5.8v3.1MediumDeferred
Published 17-02-2026Last modified 02-04-2026
Open JSON

Vulnerability summary

CVE-2026-0829 is a medium (CVSS 5.8) Missing Authorization vulnerability in unknown frontend file manager plugin. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.74%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 17-02-2026
    PublishedVulnerability first disclosed.
  2. 02-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.06 pp

From 0.68% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (wpscan.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Unknown1 product
Wordpress1 product
  • nmedia-user-file-uploader≤ 23.5

2 vendors · 2 products

References

2 links