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Fencer Intel
critical 9.8

CVE-2026-48907 kev in the critical feed json

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

published 5mo ago modified 3mo ago also EUVD-2026-34789

cvss
9.8
version 3.1, NVD
cisa kev
Exploited
added 2026-06-16
epss
85.4%
EPSS 85.4% chance of exploitation in 30 days, percentile 99.7%
public exploits
3
Metasploit and Exploit-DB

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.

Patch / fix

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.

  • widgetfactorylimited jce 2.9.99.5

Is CVE-2026-48907 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. First public exploit (Metasploit exploit/multi/http/joomla_com_jce_unauth_file_upload_rce)
  2. Published
  3. CISA SSVC: exploitation active
  4. Added to CISA KEV
  5. CISA patch deadline

Known exploited

Added
4mo ago
Patch by
2026-06-19 (4mo ago)
Ransomware
Not known
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.
Vendor, product
Widget Factory, Joomla Content Editor
CISA name
Widget Factory Joomla Content Editor Improper Access Control Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
4mo ago

Exploit prediction

85.44% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 4.0 10.0 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
CNA 4.0 10.0 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.