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.
Description as published by the source, in English.
Key facts
Published
2026-06-05
Last modified
2026-07-23
Assigned by
security@joomla.org
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored by
nvd@nist.gov (NVD Primary)
Probability of exploitation
55.9 %
higher than 99 %
of all known vulnerabilities
EPSS, next 30 days, model v2026.06.15
Fix available
Not registered in the sources
Actively exploited
CISA added this vulnerability to the Known Exploited Vulnerabilities
catalogue on 2026-06-16,
with a remediation deadline of 2026-06-19 for US federal agencies.
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.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Attack techniques
Derived through the weakness type: CVE to CWE to CAPEC to ATT&CK.
This shows which techniques the weakness class is historically used for.
It does not assert that this vulnerability has been exploited that way.
T1014: Rootkit stealth
T1027.009: Embedded Payloads stealth
T1037: Boot or Logon Initialization Scripts persistence, privilege-escalation
T1080: Taint Shared Content lateral-movement
T1505.005: Terminal Services DLL persistence
T1542.003: Bootkit stealth, persistence
T1543: Create or Modify System Process persistence, privilege-escalation
