What is CVE-2026-73372?

CVE-2026-73372 is a medium-severity vulnerability in Joomla Joomla\!, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-08-18.

How severe is CVE-2026-73372?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Joomla Joomla\!

CVE-2026-73372

Joomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joomla 5.1.0-5.4.7 and 6.0.0-6.1.2 - An improper access check injects contact information for unaccessible contact items into schema.org snippets.

Published 2026-08-18 · last modified 2026-09-03.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.1th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000

Affected products

Joomla Joomla\!
Joomla! Project Cms — versions 5.1.0-5.4.6, 6.0.0-6.1.2

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

www.joomla.org/ (Product, product)
developer.joomla.org/security-centre/1076-20260809-core-improper-acl-checks-whe… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-73372?: CVE-2026-73372 is a medium-severity vulnerability in Joomla Joomla\!, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-08-18.
How severe is CVE-2026-73372?: Medium severity. CVSS v3 base score is 4.3 out of 10.