CVE-2026-48907
Joomla Extension - joomlacontenteditor.net - Remote Code Execution in JCE extension for Joomla < 2.9.99.5
- 10.0CriticalCVSS base score
- 85.4%Exploitation in 30 daysEPSS · top 0.3% of all CVEs
- YesKnown exploitedin CISA's KEV since 16 Jun 2026
- 4Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Widget Factory Joomla Content Editor Improper Access Control Vulnerability.
- Added
- 16 Jun 2026
- Fix due (US federal)
- 19 Jun 2026
- Used by ransomware
- Not known
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.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV and ENISA's EU KEV, since 16 Jun 2026.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module, a Nuclei template and 2 Exploit-DB entries for it. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits4
Metasploit modules1 module
- Joomla Content Editor Unauthenticated File Upload RCE (Metasploit module) (opens in a new tab)
exploit/multi/http/joomla_com_jce_unauth_file_upload_rceRank excellentdisclosed 5 Jun 2026
Nuclei templates1 template
- Joomla! JCE extension < 2.9.99.5 unauthenticated RCE (Nuclei template) (opens in a new tab)
http/cves/2026/CVE-2026-48907.yamlSeverity critical
Exploit-DB2 entries
- Joomla JCE_2.9.15 - Remote Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 52645webapps, multiplepublished 17 Aug 2026Not verified
- Joomla 2.9.99.4 - Unauthenticated Remote Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 52630webapps, multiplepublished 10 Aug 2026Not verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By Joomla
- 10 days later
· 10 days later
Published
- 11 days later
· 11 days later
Added to CISA KEV
Known exploited in the wild
- 4 days later
· 4 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| JoomlaCNA (assigner) | 4.0 | Critical10.0 | 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 |
| NVDNVD · Analyzed | 4.0 | Critical10.0 | 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 |
- EPSS (exploitation in 30 days)
- 85.4% · top 0.3% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.
Affected products
joomlacontenteditor.net · Joomla Content Editor (JCE) extension for Joomla
- affected 1.0.0-2.9.99.4
References
References3
- https://www.joomlacontenteditor.net/ (opens in a new tab)product
- https://www.joomlacontenteditor.net/news/jce-security-update-and-a-free-patch-for-older-sites (opens in a new tab)vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48907 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-34789 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-48907)Record last updated .