CVE-2026-40779 HIGH

CVE-2026-40779: WordPress Link Library plugin <= 7.8.8 - Arbitrary File Deletion vulnerability

Vendor Yannick Lefebvre

Product Link Library

Weakness CWE-22 · Path traversal

Published June 15, 2026

Last update June 16, 2026

View on NVD All CVEs

CVSS base score

7.7/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality None

Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

Contributor Arbitrary File Deletion in Link Library <= 7.8.8 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Link Library versions up to 7.8.8 contain a path traversal vulnerability that allows authenticated users to cause a denial of service by disrupting site availability. An attacker with low-level access can craft requests that bypass directory restrictions and impact system resources across the site. No code execution or data theft is possible through this flaw.

What an attacker can do

03Attacker Capabilities

Disrupt site availability and performance by exploiting path traversal to access restricted resources.

Potential impact on your site

04Site Impact

Site availability may be degraded or interrupted; users may experience downtime or performance issues.

Conditions required to exploit

05Prerequisites

Attacker must have a low-level user account on the site; no special user interaction required.

Key dates

06Disclosure timeline

June 15, 2026 CVE published

June 16, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-40779 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/22.html AskarLabs — CWE-22 write-up Path Traversal

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