CVE-2026-102801 regularlabs.com CVE debrief

Who should care

Joomla site administrators using the Users Anywhere extension should assess their exposure, verify plugin settings, and update to version 3.0.1 or later if possible. This vulnerability may impact the security of user data, and administrators must take steps to prevent potential exposure of user email addresses and usernames.

Why it matters

CVE-2026-102801 is a medium-severity vulnerability in the Joomla Users Anywhere extension that allows an administrator to bypass the personal-data output setting, potentially exposing user email addresses and usernames. Joomla site administrators using this extension should assess their exposure, verify plugin settings, and update to version 3.0.1 or later if possible.

• Potential exposure of user email addresses and usernames
• Bypassing of personal-data output setting in Users Anywhere extension
• Verification of plugin settings required to prevent exposure

Technical summary

The Joomla Users Anywhere extension has a vulnerability that allows an administrator to bypass the personal-data output setting, potentially exposing user email addresses and usernames. This occurs through attributes in {user} or [email] / [username] tags that can alter plugin settings. For example, the [email allow_output_email='1'] tag can display email addresses even when the 'Allow output of email' setting is disabled. This bypasses the personal-data output setting but does not override a separate policy that restricts Users Anywhere tags from the content source altogether.

Defensive priority

Assess exposure of user email addresses and usernames in Joomla sites using Users Anywhere extension versions before 3.0.1.

Recommended defensive actions

• Assess exposure of user email addresses and usernames in Joomla sites using Users Anywhere extension versions before 3.0.1.
• Verify plugin settings for output of user email addresses and usernames.
• Update Users Anywhere extension to version 3.0.1 or later if possible.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• 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 in Joomla Users Anywhere extension. The vendor and product information is confirmed as Joomla. The vulnerability allows an administrator to bypass the personal-data output setting, potentially exposing user email addresses and usernames. Evidence is limited to CVE and NVD entries; further verification is recommended.

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.