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CVE-2026-85588— phpMyFAQ before 4.1.8 TOTP Secret Exposure via Data Export

Quick assessment

Affected
thorsten phpMyFAQ
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.

phpMyFAQ 在 4.1.8 之前的版本中，在用户数据导出 ZIP 文件中以明文形式包含了用于实时 TOTP（基于时间的一次性密码）的共享密钥。攻击者若获取了导出的压缩包，便可提取 TOTP 种子（seed），并据此生成有效的一次性验证码，从而绕过双因素认证。

CVSS 5.3 · Medium

Affected Version Matrix 2

VendorProduct Version RangeStatus
thorsten phpMyFAQ < 4.1.8 affected
4.1.8 unaffected
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I. Basic Information for CVE-2026-85588

Vulnerability Information
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Vulnerability Title
phpMyFAQ before 4.1.8 TOTP Secret Exposure via Data Export
Source: CVE Program / CVE List V5
Vulnerability Description
phpMyFAQ versions before 4.1.8 include live TOTP shared secrets in plaintext within user data export ZIP files. Attackers obtaining exported archives can extract the TOTP seed and generate valid one-time codes to bypass two-factor authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
thorsten phpMyFAQ 0 ~ 4.1.8 -

II. Public POCs for CVE-2026-85588

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III. Intelligence Information for CVE-2026-85588

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Vendor Advisories for CVE-2026-85588 (2)

Same Patch Batch · thorsten · 2026-09-04 · 8 CVEs total

CVE-2026-85591 7.1 HIGH phpMyFAQ before 4.1.8 Authentication Bypass via Unverified Password Change
CVE-2026-85590 7.1 HIGH phpMyFAQ before 4.1.8 Authentication Bypass via Two-Factor Disable
CVE-2026-85586 6.9 MEDIUM phpMyFAQ before 4.1.8 CAPTCHA Bypass via store parameter
CVE-2026-85593 5.4 MEDIUM phpMyFAQ before 4.1.8 Stored XSS via html_entity_decode
CVE-2026-85587 5.3 MEDIUM phpMyFAQ before 4.1.8 Incorrect Authorization via Admin Pages
CVE-2026-85589 5.3 MEDIUM phpMyFAQ before 4.2.0-alpha.2 Missing Authorization via Dashboard API
CVE-2026-85592 3.7 LOW phpMyFAQ before 4.1.8 Authorization Bypass via question/create

IV. Related Vulnerabilities

Same product: phpMyFAQ
Same vendor: thorsten
Same weakness: CWE-200

V. Comments for CVE-2026-85588

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