5.3

CVE-2025-54739: posimyth nexter_blocks Missing Authorization

CVSS: 5.3v3.1MediumDeferred
Published 14-08-2025Last modified 28-04-2026
Open JSON

Vulnerability summary

CVE-2025-54739 is a medium (CVSS 5.3) Missing Authorization vulnerability in posimyth nexter_blocks. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-08-2025
    PublishedVulnerability first disclosed.
  2. 28-04-2026
    Last modifiedVulnerability information updated.

Description

Missing Authorization vulnerability in POSIMYTH Nexter Blocks the-plus-addons-for-block-editor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Nexter Blocks: from n/a through <= 4.5.4.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Posimyth1 product
Wordpress1 product
  • the-plus-addons-for-block-editor≤ 4.5.4 (fixed in 4.5.5)

2 vendors · 2 products

References

2 links