# CVE-2026-111254: CVE-2026-111254

Status: published. Published: 2026-10-31. Updated: 2026-11-01.

The W3 Total Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 2.10.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that a Pro license was previously active with REST caching enabled and has since become inactive while Disk Enhanced page caching remains configured, and that the attacker holds a previously approved commenter identity.

## Remediation

No remediation reported in collected sources

## Affected products and versions

Not reported in collected sources.

## Severity and prioritization

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N; source: NVD: security@wordfence.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/BoldGrid/w3-total-cache/commit/7168b0d7cc80e827ad234a0428ab3ecdbef3c107 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/Licensing_Plugin_Admin.php#L928 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/PgCache_ContentGrabber.php#L1450 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/PgCache_ContentGrabber.php#L1719 (security@wordfence.com)

- https://plugins.trac.wordpress.org/changeset/3757452/w3-total-cache/trunk/PgCache_ContentGrabber.php (security@wordfence.com)

- https://www.wordfence.com/threat-intel/vulnerabilities/id/0169909e-c6cd-4d08-8301-5e09fce4429c?source=cve (security@wordfence.com)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111254; retrieved 2026-11-02; source updated 2026-11-01

Revision: b2c1563c79d9f8d136cd3ce256ba1595507319ad12b153eb8f7e35cd01d359a9

Canonical: https://y2.dev/cve/CVE-2026-111254