CVE-2026-100750 regularlabs.com CVE debrief

Who should care

Defenders responsible for Joomla installations, particularly those using the Modules Anywhere extension, should assess their exposure and take steps to mitigate the vulnerability. This includes verifying the presence of the vulnerable extension, restricting access to sensitive modules, and monitoring for suspicious activity. Additionally, defenders should review compensating controls for exposed systems and consider upgrading to a non-vulnerable version of

Why it matters

CVE-2026-100750 is a high-severity vulnerability in Joomla's Modules Anywhere extension, allowing for LFI and SSRF attacks. Defenders should prioritize verifying exposure, restricting access, and monitoring for suspicious activity to prevent potential sensitive information disclosure or further compromise.

• An attacker could exploit this vulnerability to access local files or make requests to network URLs, potentially leading to sensitive information disclosure or further compromise.
• Defenders need to verify the presence of the vulnerable extension and restrict access to sensitive modules to prevent exploitation.
• The vulnerability's impact is dependent on how the selected module consumes the replaced parameter, requiring defenders to assess the specific risks in their environment.
• Remediation priority is high due to the vulnerability's high CVSS score and potential for exploitation.

Technical summary

The Modules Anywhere extension for Joomla allows attackers to add attributes to a module tag, which can replace arbitrary parameters of the selected module. This feature is enabled by default in affected versions and can be exploited without checking the author of the content containing the tag. The security impact depends on how the selected module consumes the replaced parameter. For example, the Joomla core Feed module's rssurl parameter can be exploited to open local files or network URLs. The vulnerability affects versions 1.5.0 to 9.0.5 of the Modules Anywhere extension.

Defensive priority

Defenders should prioritize verifying the presence of the vulnerable extension, restricting access to sensitive modules, and monitoring for suspicious activity.

Recommended defensive actions

• Verify the presence of the vulnerable Modules Anywhere extension in your Joomla installation.
• Restrict access to sensitive modules and parameters.
• Monitor for suspicious activity, such as unusual requests to local files or network URLs.
• Consider upgrading to a non-vulnerable version of the Modules Anywhere extension.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score and weaknesses. However, the record lacks information on known affected versions, exploitation, and remediation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.