CVE-2026-58077 weeblr.com CVE debrief

Who should care

Defenders of Joomla installations using 4Analytics versions before 5.0.2 should assess exposure and apply fixes to prevent potential website takeover. Website takeover may occur under some circumstances if the vulnerability is exploited. Defenders should prioritize verifying exposure of 4Analytics versions before 5.0.2 and applying the fix.

Why it matters

Defenders should prioritize verifying exposure of 4Analytics versions before 5.0.2 and applying the fix to prevent potential website takeover.

• Website takeover may occur under some circumstances

Technical summary

The Joomla extension 4Analytics < 5.0.2 is vulnerable to unauthenticated stored XSS. A specially crafted unauthenticated request may result in website takeover under some circumstances. The vulnerability affects Joomla installations using 4Analytics versions before 5.0.2. Defenders should prioritize verifying exposure of 4Analytics versions before 5.0.2 and applying the fix to prevent potential website takeover. The official CVE Program record and NIST NVD vulnerability detail provide source-provided CVE metadata and official vulnerability assessment.

Defensive priority

Defenders should prioritize verifying exposure of 4Analytics versions before 5.0.2 and applying the fix.

Recommended defensive actions

• Verify 4Analytics version and exposure
• Apply fix to 4Analytics
• Monitor for suspicious requests
• 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, but impact and remediation require verification from official sources. The vulnerability affects Joomla installations using 4Analytics versions before 5.0.2. Defenders should verify exposure and apply fixes to prevent potential website takeover. The official CVE Program record and NIST NVD vulnerability detail provide source-provided CVE metadata and official vulnerability assessment.

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.