SEPTEMBER 17, 2026
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Case File

CVE-2026-18855

CRITICAL · CVSS 9.1 EPSS 1.21% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-15 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

The Link Library plugin for WordPress is susceptible to arbitrary file deletion due to inadequate file path validation, affecting all versions up to 7.9.4. This vulnerability allows unauthenticated attackers to delete critical files on the server, potentially leading to remote code execution if sensitive files like wp-config.php are targeted. WordPress site administrators using this plugin should prioritize immediate patching, especially if the 'Delete local file on link deletion' option is enabled.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-18855
Severity
CRITICAL
CVSS
9.1
EPSS
1.21%
WordPress

Original NVD Description

The Link Library plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the ll_delete_link_fields function in all versions up to, and including, 7.9.4 This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires the administrator to have enabled the 'Delete local file on link deletion' plugin option (disabled by default) and to subsequently permanently delete the attacker-submitted link, which is a routine moderation action.