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10.0

CVSS
Critical

CVE-2026-48907

PUBLISHED

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

Exploited in the wild PoC available Remote Low complexity No user interaction Unauthenticated

Vendor: joomlacontenteditor.net
Product: Joomla Content Editor (JCE) extension for Joomla
Published: Jun 05, 2026
EPSS: 0.8% · 53% pctl

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Description

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.

joomla php dotnet cisa

Weaknesses (CWE)

CWE-284

Improper Access Control

CVSS Scores

CVSS v4.0 10.0 Critical

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

Exploitation Status

Exploited in the wild

Recorded 2026-06-16 00:00:00 UTC · CISA

Proof of concept available

Recorded 2026-06-09 16:30:01 UTC · GitHub

References

https://www.joomlacontenteditor.net/

Known Exploited Vulnerability Sources

Catalogues that list this CVE as a known exploited vulnerability.

Source	Added
CISA First	2026-06-16 00:00 UTC
CVE	2026-06-16 20:40 UTC
All CISA Advisories	2026-06-16 21:20 UTC

Scanner Integrations

Scanner	Reference	Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-48907.yaml	Jun 15, 2026

Recent Mentions

CISA Adds One Known Exploited Vulnerability to Catalog

All CISA Advisories · Jun 16, 2026

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-48907 Widget Factory Joomla Content Editor Improper Access Control Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.