CVE-2023-2427Public exploitNetwork attack vector

Browser script execution via unencoded FAQ tags

Published May 5, 2023 · Updated Jan 29, 2025

Cross-site scripting in phpMyFAQ before 3.1.13 allows remote attackers to run script in a user's browser through a crafted FAQ tag. Tags::getAllLinkTagsById placed a database-sourced tag name directly into link text and title fields instead of encoding it as HTML. Exploitation requires a malicious tag to reach an FAQ record and a user to view the rendered link, allowing script execution in that user's web context.

CVSS severity6.1
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in phpMyFAQ before 3.1.13 allows remote attackers to run script in a user's browser through a crafted FAQ tag. Tags::getAllLinkTagsById placed a database-sourced tag name directly into link text and title fields instead of encoding it as HTML. Exploitation requires a malicious tag to reach an FAQ record and a user to view the rendered link, allowing script execution in that user's web context.

The record

CVE
CVE-2023-2427
Published
May 5, 2023
Updated
Jan 29, 2025
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 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 <3.1.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=unspecified <3.1.13

Published CVSS scores

6.1huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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