PatchSiren cyber security CVE debrief
CVE-2026-14572 themeum CVE debrief
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Page Builder Text Content in all versions up to, and including, 6.2.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with kirki_content_access capability granted by an administrator, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
- Vendor
- themeum
- Product
- Kirki – Freeform Page Builder, Website Builder & Customizer
- CVSS
- MEDIUM 6.4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-10-15
- Original CVE updated
- 2026-10-15
- Advisory published
- 2026-10-15
- Advisory updated
- 2026-10-15
Who should care
WordPress administrators, security teams, and users with the kirki_content_access capability should assess exposure and prioritize remediation. This vulnerability affects operators managing WordPress deployments with the Kirki plugin, particularly those with untrusted users or where administrators have granted the kirki_content_access capability. Security teams should review compensating controls and monitor for suspicious activity.
Why it matters
The Kirki plugin vulnerability allows authenticated attackers to inject malicious scripts, potentially leading to security breaches and data exposure. WordPress administrators and security teams should assess exposure and prioritize remediation.
- Authenticated attackers can inject arbitrary web scripts in pages
- Injected scripts execute when a user accesses an injected page
- Requires verification of administrator accounts and capabilities
- Remediation priority for WordPress installations using affected plugin versions
Technical summary
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Page Builder Text Content in all versions up to, and including, 6.2.0. This is due to insufficient input sanitization and output escaping, allowing authenticated attackers with the kirki_content_access capability to inject arbitrary web scripts. The vulnerability requires verification of administrator accounts and capabilities to prevent unauthorized access. Affected WordPress installations should be assessed for exposure, and remediation should be prioritized.
Defensive priority
Assess exposure and prioritize remediation for WordPress installations using the Kirki plugin, especially those with untrusted users or where administrators have granted the kirki_content_access capability.
Recommended defensive actions
- Assess exposure by checking if the Kirki plugin version is 6.2.0 or earlier
- Prioritize remediation or apply compensating controls for WordPress installations using the affected plugin versions
- Monitor for suspicious activity or injected scripts on affected pages
- Verify administrator accounts and capabilities to prevent unauthorized access
- Review compensating controls for exposed systems while remediation is scheduled and verified
- 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, affected versions, and references to vendor information. Evidence is limited to public sources and may not reflect the full scope or impact. Defenders should verify affected deployments, assess exposure, and review vendor guidance for remediation steps. Limited additional information is available from public sources.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-14572 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-14572
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-14572 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14572
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Kirki <= 6.2.0 - Authenticated (Custom+) Stored Cross-Site Scripting via Page Builder Text Conte
Unverified legacy reference
URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/14xxx/CVE-2026-14572.json
cve_program_cvelist_v5
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Source reference
Unverified legacy reference
URL: https://plugins.trac.wordpress.org/changeset/3636487/kirki/trunk/includes/Frontend/Preview/Preview.php
Supplemental source
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.