CVE-2026-119162 specialk CVE debrief

Who should care

Defenders responsible for WordPress installations with the User Submitted Posts plugin should assess exposure and prioritize verification and potential updates. This includes reviewing plugin configurations, monitoring for exploitation attempts, and implementing additional security measures to prevent similar vulnerabilities.

Why it matters

The User Submitted Posts plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting, allowing unauthenticated attackers to inject arbitrary web scripts. Defenders should prioritize verifying and updating the plugin, monitoring for exploitation attempts, and implementing additional security measures.

• Unauthenticated attackers can inject arbitrary web scripts in pages.
• Injected scripts execute when a user accesses an injected page.
• The vulnerability allows for Stored DOM-Based Cross-Site Scripting.
• Defenders should verify and update the plugin to a fixed version.

Technical summary

The User Submitted Posts plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'user-submitted-content' parameter in all versions up to, and including, 20260916. This allows unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is due to insufficient input sanitization and output escaping. Defenders should prioritize verifying and updating the plugin to a fixed version, if available, and monitoring for potential exploitation attempts.

Defensive priority

Defenders should prioritize verifying and updating the plugin to a fixed version, if available, and monitoring for potential exploitation attempts.

Recommended defensive actions

• Verify and update the User Submitted Posts plugin to a fixed version, if available.
• Monitor for potential exploitation attempts and review plugin configurations.
• Implement additional security measures, such as input validation and output escaping, for user-submitted content.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. The vulnerability was reported by [email protected] and affects all versions of the plugin up to 20260916. The CVE record was published on 2026-10-31T07:16:36.457Z and has not been modified since then. Defenders should verify the plugin version and review configurations to ensure they are not exposed.

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.