CVE-2026-74253: CWE-94: Improper Control of Generation of Code in regularlabs.com Sourcerer extension for Joomla
CVE-2026-74253 is a critical vulnerability in the Regular Labs Sourcerer extension for Joomla versions 1.0.0 through 15.0.0. It allows unauthenticated remote code execution (RCE) due to improper control of code generation. The extension processes {source} blocks in Joomla's final rendered HTML without reliably verifying the origin of the code, leading to execution of untrusted input.
AI Analysis
Technical Summary
The Regular Labs Sourcerer extension for Joomla prior to version 16.0.0 contains an improper control of code generation vulnerability (CWE-94). This flaw arises because the extension processes {source} blocks found in Joomla's final rendered HTML without reliably determining the source of the code. As a result, unauthenticated attackers can inject and execute arbitrary code remotely, leading to a critical remote code execution vulnerability.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary code on the affected Joomla server, potentially leading to full system compromise. The vulnerability has a CVSS 4.0 base score of 10.0, indicating maximum severity and impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, it is recommended to avoid using affected versions of the Sourcerer extension or disable it if possible.
CVE-2026-74253: CWE-94: Improper Control of Generation of Code in regularlabs.com Sourcerer extension for Joomla
Description
CVE-2026-74253 is a critical vulnerability in the Regular Labs Sourcerer extension for Joomla versions 1.0.0 through 15.0.0. It allows unauthenticated remote code execution (RCE) due to improper control of code generation. The extension processes {source} blocks in Joomla's final rendered HTML without reliably verifying the origin of the code, leading to execution of untrusted input.
CVSS v4.0
Score 10.0critical
Affected software
regularlabs.com
Sourcerer extension for Joomla
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Regular Labs Sourcerer extension for Joomla prior to version 16.0.0 contains an improper control of code generation vulnerability (CWE-94). This flaw arises because the extension processes {source} blocks found in Joomla's final rendered HTML without reliably determining the source of the code. As a result, unauthenticated attackers can inject and execute arbitrary code remotely, leading to a critical remote code execution vulnerability.
Potential Impact
Successful exploitation allows unauthenticated attackers to execute arbitrary code on the affected Joomla server, potentially leading to full system compromise. The vulnerability has a CVSS 4.0 base score of 10.0, indicating maximum severity and impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, it is recommended to avoid using affected versions of the Sourcerer extension or disable it if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-15T04:38:57.663Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a834478bf8831d5394445d5
Added to database: 08/17/2026, 17:27:20 UTC
Last enriched: 09/12/2026, 01:01:48 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 61
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