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CVE-2026-17602— SSL Zen <= 4.7.42 - Authenticated (Administrator+) Path Traversal to Arbitrary File Read via 'file_name' Parameter

Quick assessment

Affected
sslzen SSL Zen — SSL Certificate Installer & HTTPS Redirects
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.

WordPress 插件 “The SSL Zen — SSL Certificate Installer & HTTPS Redirects” 存在目录遍历漏洞，该漏洞影响所有 4.7.42 及更早版本。攻击者可通过构造恶意的 'file_name' 参数利用此漏洞。凭借管理员权限（或更高权限），已认证的恶意用户可以读取服务器上任意文件的内容，从而获取可能包含敏感信息的文件数据。

CVSS 4.9 · Medium EPSS 0.56% · P45

Affected Version Matrix 1

VendorProduct Version RangeStatus
sslzen SSL Zen — SSL Certificate Installer & HTTPS Redirects ≤ 4.7.42 affected
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I. Basic Information for CVE-2026-17602

Vulnerability Information
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Vulnerability Title
SSL Zen <= 4.7.42 - Authenticated (Administrator+) Path Traversal to Arbitrary File Read via 'file_name' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The SSL Zen — SSL Certificate Installer & HTTPS Redirects plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.7.42 via the 'file_name' parameter parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
sslzen SSL Zen — SSL Certificate Installer & HTTPS Redirects 0 ~ 4.7.42 -

II. Public POCs for CVE-2026-17602

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III. Intelligence Information for CVE-2026-17602

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Patches & Fixes for CVE-2026-17602 (1)

Vendor Advisories for CVE-2026-17602 (1)

IV. Related Vulnerabilities

Same product: SSL Zen — SSL Certificate Installer & HTTPS Redirects
Same vendor: sslzen
Same weakness: CWE-22

V. Comments for CVE-2026-17602

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