[HIGH] CVE-2026-11912 — CVSS 7.5 (June 20, 2026)

A HIGH-severity vulnerability identified as CVE-2026-11912 has been published on June 20, 2026 with a CVSS base score of 7.5. This security advisory provides a detailed breakdown of the vulnerability, its potential impact, weakness classification, and actionable steps to protect your systems.

Vulnerability Details

CVE ID: CVE-2026-11912
Severity: HIGH
CVSS Score: 7.5
Published: June 20, 2026
Weakness (CWE): CWE-862

Technical Description

The Simple File List plugin for WordPress is vulnerable to arbitrary file modification due to insufficient authorization checks in all versions up to, and including, 6.3.7. This makes it possible for unauthenticated attackers to delete and modify files on the serve. This vulnerability is exploitable even when the administrator has not enabled the AllowFrontManage setting, because the is_admin() check unconditionally short-circuits the guard before that setting is evaluated.

Potential Impact

If exploited, this high-severity vulnerability could allow an attacker to tamper with system integrity. Organizations running affected software should treat this as a priority remediation item.

Recommended Action

No official patch is available yet. Until one is released:

1. Monitor the official NVD page and vendor channels for patch announcements.
2. Restrict access to the affected system or service where possible.
3. Apply network-level mitigations such as firewall rules or WAF policies.
4. Enable logging and alerting for anomalous activity related to this vulnerability.
5. Review your incident response plan in case of active exploitation.

View full details on NVD →

References

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• Reference 5

Related Security Advisories

• [HIGH] CVE-2026-5200 — CVSS 8.8 (May 20, 2026) — HIGH / CVSS 8.8
• [HIGH] CVE-2026-42377 — CVSS 7.3 (April 29, 2026) — HIGH / CVSS 7.3
• [HIGH] CVE-2026-11395 — CVSS 7.2 (June 18, 2026) — HIGH / CVSS 7.2