CVE-2026-48907: Widget Factory Joomla Content Editor Improper Access Control Vulnerability

What it is

Widget Factory Joomla Content Editor contains an improper access control vulnerability which could allow for upload and execution of PHP code via the creation of new editor profiles for unauthenticated users.

What to do

Treat this as urgent. Identify every affected system, starting with anything internet-facing, and apply the vendor fix or mitigation within days. If you cannot patch quickly, isolate or disable the affected service and watch for signs of compromise.

Priority

Act now: Patch or mitigate internet-facing systems within days.

Severity (CVSS)

10 critical

CISA assessment (SSVC)

actively exploited; attackers can automate it at scale; total control of the affected system

Exploit probability (EPSS, 30 days)

16%, higher than 96% of all CVEs

Added to CISA KEV

16 June 2026

CISA fix-by date

19 June 2026 (US federal agencies; a sensible deadline for everyone)

Ransomware use

Not known

Weakness

CWE-284

References

• NIST NVD entry
• CISA KEV entry
• www.joomlacontenteditor.net/
• www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48907
• www.joomlacontenteditor.net/news/jce-security-update-and-a-free-patch-for-older-

Sources: CISA Known Exploited Vulnerabilities · FIRST Exploit Prediction Scoring System (EPSS) · NIST National Vulnerability Database · CISA Vulnrichment (SSVC), via the CVE Program. This product uses data from the NVD API but is not endorsed or certified by the NVD. Summaries are machine-written from CISA’s description; treat the vendor’s advisory as the authority for fixes.