Cyber Resilience

CVE-2026-48901

High

Published: 26 May 2026

Published
26 May 2026
Modified
28 May 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0024 15.4th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-48901 is a high-severity Use of Cache Containing Sensitive Information (CWE-524) vulnerability in Joomla Joomla\!. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 15.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The InputFilter::getInstance() method omitted a security sensitive parameter from the instance cache key.

CWE(s)
CWE-524

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Cache key omission in security-sensitive InputFilter enables filter bypass exploitable on public apps.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

Affected Assets

joomla
joomla\!
4.0.0 — 5.4.6 · 6.0.0 — 6.1.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-21 Information Refresh
addresses: CWE-524

Refreshing cached data or generating it ephemerally and deleting afterward directly mitigates storage of sensitive information in caches.

References