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CRITICAL Actively exploited CWE-284

CVE-2026-48907

Joomla Extension - joomlacontenteditor.net - Remote Code Execution in JCE extension for Joomla < 2.9.99.5

Widget Factory·Joomla Content Editor

10.0/ 10
CVSS 4.0
Critical severity
85%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 99.7% of all CVEs
Listed
CISA KEV catalog
Added
Jun 16, 2026
Fix due
Jun 19, 2026
Ransomware
Not known
Timeline
Published
Jun 5, 2026
Updated
Jun 20, 2026
First covered
Jul 11, 2026
Latest story
4 months ago

Summary

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.

CWE-284Improper Access Control

Attack profile

Attack vectorNetwork
ComplexityLow
RequirementsNone
PrivilegesNone
User interactionNone
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red

CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Affected products

  • Joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla1.0.0-2.9.99.4

References

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