CVE-2026-86803 oceanwp CVE debrief

Who should care

Defenders responsible for WordPress installations with the Ocean Extra plugin should assess exposure and prioritize remediation. Security teams and vulnerability management teams should review the vulnerability's details and plan for potential remediation. Operators and administrators of affected systems should verify the vulnerability's existence and plan for mitigation. Platform owners and security personnel should review the vulnerability's impact and

Why it matters

CVE-2026-86803 allows unauthenticated attackers to execute arbitrary shortcodes in Ocean Extra plugin versions up to 2.6.0. Defenders should assess exposure, prioritize remediation, and monitor for potential exploitation attempts.

• Attackers can execute arbitrary shortcodes, potentially leading to unauthorized actions
• Defenders need to verify if the vulnerability has been remediated in later versions
• Exposure requires assessment and potential remediation to prevent exploitation

Technical summary

The Ocean Extra plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.6.0. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. The vulnerability allows unauthenticated attackers to execute arbitrary shortcodes, potentially leading to unauthorized actions. Defenders should assess exposure and prioritize remediation to prevent potential exploitation. The vulnerability's technical details indicate a medium to high severity level, requiring prompt attention.

Defensive priority

Medium priority for defenders to assess and remediate, given the potential for attackers to execute arbitrary shortcodes.

Recommended defensive actions

• Assess exposure of Ocean Extra plugin versions up to 2.6.0
• Verify if the vulnerability has been remediated in later versions
• Monitor for potential exploitation attempts
• Implement compensating controls to restrict shortcode execution
• Review vendor patch guidance for Ocean Extra plugin updates
• Conduct exposure review for affected WordPress installations
• Track exceptions and retest remediated assets

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description and affected versions. The vulnerability allows unauthenticated attackers to execute arbitrary shortcodes in Ocean Extra plugin versions up to 2.6.0. The source item and CVE record provide evidence of the vulnerability's existence and its potential impact.

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.