CVE-2023-0788Public exploitNetwork attack vector

Authenticated code injection via unsanitized question markup

Published Feb 12, 2023 · Updated Mar 21, 2025

Code injection in phpMyFAQ before 3.1.11 allows remote authenticated users to inject executable markup through submitted questions. The ajaxservice.php question handler accepts the POST question value with FILTER_UNSAFE_RAW and stores it without stripping HTML tags. Low-privileged access to the question-submission path is sufficient; injected browser code can read or alter data available to a viewer, but no service interruption is reported.

CVSS severity8.1
High
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in phpMyFAQ before 3.1.11 allows remote authenticated users to inject executable markup through submitted questions. The ajaxservice.php question handler accepts the POST question value with FILTER_UNSAFE_RAW and stores it without stripping HTML tags. Low-privileged access to the question-submission path is sufficient; injected browser code can read or alter data available to a viewer, but no service interruption is reported.

The record

CVE
CVE-2023-0788
Published
Feb 12, 2023
Updated
Mar 21, 2025
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-94, T1059.007
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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1huntr.devCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

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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