CVE-2026-48907
CriticalExploitedPublic exploitA 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.
Published Jun 5, 2026 · Updated Jul 26, 2026 · Also known as EUVD-2026-34789, GHSA-c3f5-4g7f-qjqj
Key Facts
Patch immediately- CVE-2026-48907 is a critical-severity vulnerability (CVSS 10.0 v4) affecting Jce (Widgetfactorylimited), Joomla Content Editor (JCE) extension for Joomla.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 12, 2026. Public exploit code is available.
- EPSS estimates a 16% probability of exploitation in the next 30 days.
- Fixed versions are available, including Jce 2.9.99.5.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
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
EPSS (30-day exploit likelihood)
16%
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-48907 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jun 16, 2026 | Jun 19, 2026 | Not reported |
| Industry KEV feed | Jun 12, 2026 | Jun 19, 2026 | Not reported |
| CIRCL KEV | Jun 16, 2026 | Jun 19, 2026 | Not reported |
| ENISA EUVD | Jun 16, 2026 | n/a | Not reported |
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
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| JceWidgetfactorylimited | See advisory | 2.9.99.5 |
| Joomla Content Editor (JCE) extension for Joomla | >= 1.0.0-2.9.99.4 | n/a |
Patched Releases
Jce
2.9.99.5
Timeline
Publicly disclosed
Jun 5, 2026
Added to Industry KEV feed
Jun 12, 2026
Added to CISA KEV
Jun 16, 2026
Added to CIRCL KEV
Jun 16, 2026
Added to ENISA EUVD
Jun 16, 2026
Last updated
Jul 26, 2026
Weakness Type
- CWE-284 Improper Access Control
References
- exploitVulnCheck exploitation report
- exploitMSF joomla_com_jce_unauth_file_upload_rce.rb
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: Jce (Widgetfactorylimited); Joomla Content Editor (JCE) extension for Joomla versions >= 1.0.0-2.9.99.4. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 12, 2026.
Yes. It was added on Jun 16, 2026 with a federal remediation due date of Jun 19, 2026.
Public exploit code is available.
Fixed versions are available, including Jce 2.9.99.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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