Code injection in regularlabs.com Sourcerer extension for Joomla
Priority MEDIUM 49CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
Joomla Extension - regularlabs.com - Unauthenticated RCE through unverified reflected user input in Sourcerer < 16.0.0 - Regular Labs Sourcerer before 16.0.0 processes {source} blocks found in Joomla’s final rendered HTML without reliably determining where that code originated.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00323 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| regularlabs.com | Sourcerer extension for Joomla | 1.0.0-15.0.0 | — | No fix listed | CNA |
- Sourcerer extension for Joomla Vendorregularlabs.com Affected 1.0.0-15.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-74253
- 2026-10-03 Alias added: GHSA-23wq-9cpv-vp32
References
Other 1
More regularlabs.com vulnerabilities
- TI-2026-46603 Path traversal in regularlabs.com GeoIP extension for Joomla CVSS 3.1CRITICAL 9.8
- TI-2025-16115 Extension - regularlabs.com - Remote code execution vulnerability in the Sourcerer extensions < 12.0.0 for Joomla CVSS 3.1CRITICAL 9.8
- TI-2026-46380 Information disclosure in regularlabs.com Cache Cleaner Pro extension for Joomla CVSS 3.1CRITICAL 9.8
- TI-2026-46379 Server-side request forgery in regularlabs.com Cache Cleaner Pro extension for Joomla CVSS 3.1CRITICAL 9.8
- TI-2026-46326 Improper access control in regularlabs.com Sourcerer extension for Joomla CVSS 3.1CRITICAL 9.8
- TI-2026-46328 Joomla Extension - regularlabs.com - Insecure login URL keys in IP login extension CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-74253 · CVE Program
- CVE-2026-74253 · NVD
- FIRST EPSS
- GHSA-23wq-9cpv-vp32 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences