CVE-2023-0790Public exploitNetwork attack vector

Authenticated request crash via invalid email

Published Feb 12, 2023 · Updated Mar 21, 2025

Uncaught exception handling in phpMyFAQ before 3.1.11 allows remote authenticated users to crash request handling with an invalid email address. The admin user-update path in phpmyfaq/admin/user.php accepts a failed FILTER_VALIDATE_EMAIL result and continues into user-data operations instead of rejecting it. Access to the user-management action is required, and the unhandled error interrupts the affected request; the patch does not disclose broader data effects.

CVSS severity8.8
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncaught exception handling in phpMyFAQ before 3.1.11 allows remote authenticated users to crash request handling with an invalid email address. The admin user-update path in phpmyfaq/admin/user.php accepts a failed FILTER_VALIDATE_EMAIL result and continues into user-data operations instead of rejecting it. Access to the user-management action is required, and the unhandled error interrupts the affected request; the patch does not disclose broader data effects.

The record

CVE
CVE-2023-0790
Published
Feb 12, 2023
Updated
Mar 21, 2025
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-248, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 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=unspecified <3.1.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=unspecified <3.1.11

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.6huntr.devCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-248Uncaught Exception
T1499Endpoint Denial of Service

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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