CVE-2026-102401 codename065 CVE debrief

Who should care

Defenders responsible for WordPress installations with the Download Manager plugin, particularly those with contributor-level access and above, should assess exposure and prioritize updates to prevent authenticated attackers from injecting arbitrary web scripts.

Why it matters

The Download Manager plugin vulnerability allows authenticated attackers to inject arbitrary web scripts, impacting logged-out site visitors.

• Authenticated attackers with contributor-level access can inject arbitrary web scripts
• Injected payloads only fire for logged-out site visitors
• Defenders must verify and update the Download Manager plugin
• Exposure requires contributor-level access and above

Technical summary

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'regurl' parameter in all versions up to, and including, 3.3.71 due to insufficient input sanitization and output escaping. This vulnerability allows authenticated attackers with contributor-level access to inject arbitrary web scripts, impacting logged-out site visitors. The injected payload only fires for logged-out site visitors, as the vulnerable login-form.php template branch is gated on !is_user_logged_in(). Defenders should prioritize verifying and updating the Download Manager plugin to a version beyond 3.3.71.

Defensive priority

Defenders should prioritize verifying and updating the Download Manager plugin to a version beyond 3.3.71, and assess exposure for contributor-level access and above.

Recommended defensive actions

• Verify and update the Download Manager plugin to a version beyond 3.3.71
• Assess exposure for contributor-level access and above
• Monitor for suspicious activity on the login form
• 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 vulnerability exists in the 'regurl' parameter of the Download Manager plugin, allowing authenticated attackers with contributor-level access to inject arbitrary web scripts. The injected payload only fires for logged-out site visitors, as the vulnerable login-form.php template branch is gated on !is_user_logged_in(). Defenders should verify and update the Download Manager plugin to a version beyond 3.3.71 and assess exposure for contributor-level access and above.

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.