CVE-2026-90884 brechtvds CVE debrief

Who should care

Defenders responsible for WordPress sites using the WP Recipe Maker plugin should assess exposure and prioritize verification and updates to prevent exploitation. This includes reviewing the plugin version, monitoring for suspicious activity, and implementing additional security measures to prevent cross-site scripting attacks. Affected operators and platforms should focus on vulnerability management and security team impact.

Why it matters

The WP Recipe Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing authenticated attackers to inject arbitrary web scripts. Defenders should prioritize verifying and updating the plugin to prevent exploitation.

• Authenticated attackers with Contributor-level access and above can inject arbitrary web scripts
• Injected scripts execute whenever a user accesses an injected page
• Defenders need to verify and update the WP Recipe Maker plugin to prevent exploitation
• Further verification is needed to confirm affected versions and exploitation

Technical summary

The WP Recipe Maker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'notes' parameter in all versions up to, and including, 10.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Defensive priority

Defenders should prioritize verifying and updating the WP Recipe Maker plugin to prevent exploitation.

Recommended defensive actions

• Verify the WP Recipe Maker plugin version and update to a fixed version if necessary
• Monitor for suspicious activity on WordPress sites using the WP Recipe Maker plugin
• Implement additional security measures to prevent cross-site scripting attacks
• 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, but further verification is needed to confirm affected versions and exploitation. Defenders should verify the WP Recipe Maker plugin version and update to a fixed version if necessary. The vulnerability's impact is limited to authenticated attackers with Contributor-level access and above. Additional security measures should be implemented to prevent cross-site scripting attacks. The CVE record was published on 2026-09-18T10:17:08.000Z and has not been modified since.

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.