CVE-2026-45010Public exploitNetwork attack vector

Administrative takeover via unbound TOTP brute-force

Published May 15, 2026 · Updated May 15, 2026

Authentication bypass in phpMyFAQ before 4.1.2 allows remote attackers to gain administrative access by brute-forcing TOTP codes. The AuthenticationController exempts every route from authentication, and /admin/check accepts attacker-selected user-id and six-digit token values without binding them to a password-verified session or limiting failures. Default installations expose the POST route remotely; a successful guess calls twoFactorSuccess() and creates a fully authenticated administrative session with access to users, content, configuration, and exports.

CVSS severity9.1
Critical
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in phpMyFAQ before 4.1.2 allows remote attackers to gain administrative access by brute-forcing TOTP codes. The AuthenticationController exempts every route from authentication, and /admin/check accepts attacker-selected user-id and six-digit token values without binding them to a password-verified session or limiting failures. Default installations expose the POST route remotely; a successful guess calls twoFactorSuccess() and creates a fully authenticated administrative session with access to users, content, configuration, and exports.

The record

CVE
CVE-2026-45010
Published
May 15, 2026
Updated
May 15, 2026
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-307, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=0 <4.1.2

Published CVSS scores

9.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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