What is CVE-2024-50452?

CVE-2024-50452 is a medium-severity vulnerability in Posimyth Nexter Blocks, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2026-02-20.

How severe is CVE-2024-50452?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2024-50452 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Posimyth Nexter Blocks

CVE-2024-50452

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in POSIMYTH Nexter Blocks the-plus-addons-for-block-editor allows Stored XSS.This issue affects Nexter Blocks: from n/a through <= 3.3.3.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (33.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

Affected products

Posimyth Nexter Blocks — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

patchstack.com/database/Wordpress/Plugin/the-plus-addons-for-block-editor/vulne… (vdb-entry)

Frequently asked questions

What is CVE-2024-50452?: CVE-2024-50452 is a medium-severity vulnerability in Posimyth Nexter Blocks, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2026-02-20.
How severe is CVE-2024-50452?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2024-50452 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.