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VulnerabilityPublished Updated

CVE-2026-48901: Joomla! CMS · CWE-524

Affects Joomla! CMSSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Joomla! ProjectJoomla! CMSAffected
  • =4.0.0-5.4.5
  • =6.0.0-6.1.0
Fixed in–
Packagistjoomla/joomla-cmspkg:composer/joomla/joomla-cmsOther threatsAffected
  • =4.0.0
  • <=5.4.5
  • >=6.0.0
  • <=6.1.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until an official fix is released, users should monitor Joomla! Project advisories for updates. No specific temporary mitigations are provided in the available data.

Description

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

References

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