CVE-2026-18855— Link Library <= 7.9.4 未授权任意文件删除漏洞
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| jackdewey | Link Library | ≤ 7.9.4 | affected |
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一、 漏洞 CVE-2026-18855 基础信息
漏洞信息
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Vulnerability Title
Link Library <= 7.9.4 - Unauthenticated Arbitrary File Deletion via link_url Parameter
来源: CVE Program / CVE List V5
Vulnerability 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.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| jackdewey | Link Library | 0 ~ 7.9.4 | - |
二、漏洞 CVE-2026-18855 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-18855 补丁与修复 (2)
CVE-2026-18855 其他参考 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2026-18855
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