6.5

CVE-2026-16057: unknown contest gallery Missing Authorization

CVSS: 6.5v3.1MediumDeferred
Published 03-08-2026Last modified 04-08-2026
Open JSON

Vulnerability summary

CVE-2026-16057 is a medium (CVSS 6.5) Missing Authorization vulnerability in unknown contest gallery. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 34.6% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 30.0.7.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.42%
0%100%
Low · +0.19 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 03-08-2026
    PublishedVulnerability first disclosed.
  2. 04-08-2026
    Last modifiedVulnerability information updated.

Description

The Contest Gallery WordPress plugin before 30.0.7 does not perform per-object capability or nonce checks in one of its post-deletion handlers, gating it only by a coarse role-membership test, which allows any Author-level or higher user to permanently delete arbitrary posts, pages, and other content they do not own.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

+0.19 pp

From 0.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.42%

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
  • contest-gallery≤ 30.0.6 (fixed in 30.0.7)

2 vendors · 2 products

References

2 links