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CVE-2026-68488

Quick assessment

Affected
WebPros Plesk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

这段描述的是一个在 Plesk 中由“检查时”与“使用时”（TOCTOU）竞态条件引发的安全漏洞，具体表现为对符号链接的不安全跟随，从而导致本地权限提升至 root 级别，攻击者可通过任意文件或目录的所有权接管获得 root 权限。

AI Predicted 7.8 Difficulty: Moderate
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I. Basic Information for CVE-2026-68488

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following in Plesk causes local privilege escalation to root via arbitrary file/directory ownership takeover.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WebPros Plesk 0 ~ 18.0.80.6 -

II. Public POCs for CVE-2026-68488

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III. Intelligence Information for CVE-2026-68488

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Other References for CVE-2026-68488 (1)

Same Patch Batch · WebPros · 2026-09-10 · 4 CVEs total

CVE-2026-65639 9.5 CRITICAL ConfigServer Security & Firewall 16.30以下OS命令注入
CVE-2026-65638 9.2 CRITICAL ConfigServer Security & Firewall 16.30前 远程未认证RCE
CVE-2026-68487 Plesk Backup Manager 路径遍历致root任意文件写入

IV. Related Vulnerabilities

Same product: Plesk
Same vendor: WebPros
Same weakness: CWE-367

V. Comments for CVE-2026-68488

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