CVE-2026-120075 melapress CVE debrief

Who should care

Defenders responsible for WordPress installations with the WP Activity Log plugin should assess exposure and prioritize verification and remediation. Defenders should verify exposure of WP Activity Log plugin versions up to 5.6.1 and assess the risk of arbitrary web script injection. This includes reviewing compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing unauthenticated attackers to inject arbitrary web scripts. Defenders should prioritize verifying exposure and assessing the risk of arbitrary web script injection.

• Unauthenticated attackers can inject arbitrary web scripts in pages
• Injected scripts execute when a user accesses an injected page
• Defenders must verify exposure of WP Activity Log plugin versions up to 5.6.1
• Remediation requires updating WP Activity Log plugin to a fixed version

Technical summary

The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 5.6.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability affects WordPress installations with the WP Activity Log plugin, allowing unauthenticated attackers to inject arbitrary web scripts. Defenders should prioritize verifying exposure and assessing the risk of arbitrary web script injection.

Defensive priority

Defenders should prioritize verifying exposure of WP Activity Log plugin versions up to 5.6.1 and assess the risk of arbitrary web script injection.

Recommended defensive actions

• Verify WP Activity Log plugin version and assess exposure
• Implement input sanitization and output escaping for WP Activity Log plugin
• Monitor for arbitrary web script injection attempts
• 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 vulnerability detail page provide information on the vulnerability, but do not specify which versions are fixed or provide additional details on exploitation. The WP Activity Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing unauthenticated attackers to inject arbitrary web scripts. Defenders should verify exposure of WP Activity Log plugin versions up to 5.6.1 and assess the risk of arbitrary web script injection. Evidence is limited, and defenders should exercise caution when rem

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.