Medium 5.3Known exploited (CISA KEV)Published Feb 16, 2023

CVE-2023-23752[20230201] - Core - Improper access check in webservice endpoints

Updated under an hour ago (Oct 26, 2026, 10:50 PM ET)

Does this affect you?

It affects Joomla! Project Joomla! CMS and 1 other product. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Jan 8, 2024; federal agencies had to remediate by Jan 29, 2024. Treat that date as your deadline.

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Exploited in the last 30 days

An issue was discovered in Joomla! 4.0.0 through 4.2.7. An improper access check allows unauthorized access to webservice endpoints.

CVSS: 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-284
Known exploited: Added to CISA KEV Jan 8, 2024; federal remediation due Jan 29, 2024Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 99.81% (percentile 100)
Assigned by: Joomla
NVD analysis: Analyzed
Record last updated: Feb 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Joomla! Project Joomla! CMS joomla_project:joomla_cms (from the name)	4.0.0-4.2.7	CNA record
joomla joomla\! joomla:joomla!	from 4.0.0 through 4.2.7	CISA ADP
joomla joomla! joomla:joomla!	from 4.0.0 before 4.2.8	NVD

References

References

https://developer.joomla.org/security-centre/894-20230201-core-improper-access-check-in-webservice-endpoints.html	vendor-advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23752	us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.