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CVE-2025-54739

WordPress Nexter Blocks Plugin <= 4.5.4 - Broken Access Control Vulnerability

5.3 Medium

CVE-2025-54739 is a medium vulnerability (CVSS 5.3) in Posimyth Nexter Blocks, published August 14, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.

What does this mean?
Severity
5.3 MediumCVSS 3.1, CVE List
Exploit chance
0.26%EPSS, 17th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.26%Up 0.2 points since Aug 15, 2025
90%50%10%1%

Affected products

What each source reports

CVE List Score used5.3

WordPress Nexter Blocks Plugin <= 4.5.4 - Broken Access Control Vulnerability

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.

Record
CVE-2025-54739
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2025-249165.3

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.

Record
EUVD-2025-24916
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-jx64-cq6v-gwvc5.3

Missing Authorization vulnerability in POSIMYTH Nexter Blocks allows Exploiting Incorrectly...

Missing Authorization vulnerability in POSIMYTH Nexter Blocks allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Nexter Blocks: from n/a through 4.5.4.

Record
GHSA-jx64-cq6v-gwvc
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02
NVD5.3

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.

Record
CVE-2025-54739
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-862
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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