CVE-2026-48904

CRITICAL
Published May 26, 2026 Modified May 26, 2026 CWE-284

Description

An improper access check allows privelege escalation through the com_users group editing webservice endpoint.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0000
Probability of exploitation
0.00%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor Product
joomla joomla\!
joomla joomla\!

References

Frequently Asked Questions

What is CVE-2026-48904? +
An improper access check allows privelege escalation through the com_users group editing webservice endpoint. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2026-48904? +
CVE-2026-48904 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0000, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-48904? +
CVE-2026-48904 affects products from joomla, specifically: joomla\!. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-48904? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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