CVE-2026-85017 Unlimited Elements CVE debrief

Who should care

Defenders responsible for WordPress installations with the Unlimited Elements For Elementor plugin should assess exposure and prioritize updates to version 2.0.20 or later. This includes reviewing the current version of the plugin, identifying affected systems, and planning updates or mitigations through normal change control. Additionally, defenders should review compensating controls for exposed systems while remediation is scheduled and verified, and

Why it matters

The Unlimited Elements For Elementor WordPress plugin vulnerability allows authenticated attackers to inject arbitrary PHP objects, requiring defenders to assess exposure and prioritize updates.

• Potential for arbitrary PHP object injection
• Possible exploitation by authenticated attackers with subscriber-level access
• Need for verification of affected systems and potential impact
• Priority for updating to version 2.0.20 or later

Technical summary

The Unlimited Elements For Elementor WordPress plugin before 2.0.20 does not perform a capability check on an AJAX action and deserializes attacker-controlled stored data through it, allowing authenticated attackers with subscriber-level access to inject arbitrary PHP objects. This vulnerability can be exploited by injecting attacker-controlled data through the AJAX action, which deserializes the input, potentially leading to arbitrary PHP object injection. The issue was partially fixed in versions 2.0.18 and 2.0.19 by raising the required privilege to editor-level, but the issue was fully resolved in version 2.0.20.

Defensive priority

Defenders should prioritize updating to version 2.0.20 or later to prevent exploitation.

Recommended defensive actions

• Update to version 2.0.20 or later
• Restrict access to the vulnerable AJAX action
• Monitor for suspicious activity
• 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. Further verification is needed to determine the full scope of affected systems and potential impact. The Unlimited Elements For Elementor WordPress plugin before 2.0.20 does not perform a capability check on an AJAX action and deserializes attacker-controlled stored data through it. Authenticated attackers with subscriber-level access can exploit this issue by injecting attacker-controlled data through the AJAX action, which deserializes the input. The vulnerability is

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.