WordPress Materialis Companion plugin <= 1.3.52 - Broken Access Control vulnerability

published 2026-01-23 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-4378

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

Missing Authorization vulnerability in Horea Radu Materialis Companion materialis-companion allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Materialis Companion: from n/a through <= 1.3.52.

Patch / fix

fixed in 1

Horea Radu Materialis Companion 1.3.53

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 9 mo ago (2026-01-27)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

Horea Radu Materialis Companion

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/materialis-companion/vulnerability/wordpress-materialis-companion-plugin-1-3-52-bro
vdb-entry

Sources

CVE List CVE-2026-24543
NVD CVE-2026-24543

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary