CVE-2026-78001 boldgrid CVE debrief

Who should care

Defenders responsible for WordPress installations with the Post and Page Builder by BoldGrid plugin, especially those with Contributor-level access, should assess exposure and prioritize updating the plugin.

Why it matters

The CVE-2026-78001 vulnerability in the Post and Page Builder by BoldGrid plugin allows authenticated attackers to inject arbitrary web scripts, potentially leading to XSS attacks. Defenders should prioritize verifying and updating the plugin, assessing exposure for systems with Contributor-level access, and monitoring for potential XSS attacks.

• Potential injection of arbitrary web scripts in pages
• Execution of injected scripts when a user accesses an injected page
• Required verification and updating of the Post and Page Builder by BoldGrid plugin

Technical summary

The Post and Page Builder by BoldGrid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Table Designer 'data-label' Attribute in all versions up to, and including, 1.27.13. This is due to insufficient input sanitization and output escaping, allowing authenticated attackers with Contributor-level access and above to inject arbitrary web scripts in pages that will execute when a user accesses an injected page.

Defensive priority

Defenders should prioritize verifying and updating the Post and Page Builder by BoldGrid plugin to a version beyond 1.27.13, and assess exposure for systems with Contributor-level access.

Recommended defensive actions

• Verify and update the Post and Page Builder by BoldGrid plugin to a version beyond 1.27.13
• Assess exposure for systems with Contributor-level access
• Monitor for and respond to potential XSS 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 source item provide details on the vulnerability, including its description, CVSS score, and affected versions. Defenders should verify and update the Post and Page Builder by BoldGrid plugin to a version beyond 1.27.13, assess exposure for systems with Contributor-level access, and monitor for potential XSS attacks. Evidence is limited to CVE Program and NVD records, and defenders should consider these sources when verifying and updating the plugin.

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.