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PatchSiren cyber security CVE debrief

CVE-2026-48907 joomlacontenteditor.net CVE debrief

A vulnerability in the JCE editor extension for Joomla allows the creation of new editor profiles for unauthenticated users, ultimately resulting in PHP code upload and execution. This vulnerability has a CVSS score of 10 and is considered CRITICAL.

Vendor
joomlacontenteditor.net
Product
Joomla Content Editor (JCE) extension for Joomla
CVSS
CRITICAL 10
CISA KEV
Listed
Original CVE published
2026-06-16
Original CVE updated
2026-06-16
Advisory published
2026-06-16
Advisory updated
2026-06-16

Who should care

Users of Joomla with the JCE editor extension installed should be aware of this vulnerability and take immediate action to mitigate it.

Technical summary

The vulnerability exists in the JCE editor extension for Joomla, allowing unauthenticated users to create new editor profiles, which can lead to PHP code upload and execution.

Defensive priority

High

Recommended defensive actions

  • Update the JCE editor extension to the latest version.
  • Restrict access to the JCE editor extension to authenticated users only.
  • Monitor for suspicious activity on your Joomla site.

Evidence notes

The CVE record and NVD detail pages provide evidence of this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-48907 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-48907

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-48907 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-48907

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.