CVE-2025-59943Public exploitNetwork attack vector

Account ambiguity via unchecked duplicate email registration

Published Oct 3, 2025 · Updated Oct 3, 2025

Incorrect user management in phpMyFAQ 4.0.7 through 4.0.12 allows remote attackers to create multiple accounts with one email. RegistrationHelper::createUser and User::createUser inserted account data without checking whether faquserdata already contained the submitted email. Registration is unauthenticated; account takeover or privilege escalation additionally requires an email-based reset or administrative flow to select the wrong account.

CVSS severity8.1
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect user management in phpMyFAQ 4.0.7 through 4.0.12 allows remote attackers to create multiple accounts with one email. RegistrationHelper::createUser and User::createUser inserted account data without checking whether faquserdata already contained the submitted email. Registration is unauthenticated; account takeover or privilege escalation additionally requires an email-based reset or administrative flow to select the wrong account.

The record

CVE
CVE-2025-59943
Published
Oct 3, 2025
Updated
Oct 3, 2025
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-286, CWE-284, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2025Record 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=>= 4.0.7, < 4.0.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=>= 4.0.7, < 4.0.13

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A: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-286Incorrect User Management
CWE-284Improper Access Control
T1136Create Account

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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