CVE-2023-5864Network attack vector

Stored script execution via unencoded FAQ titles

Published Oct 31, 2023 · Updated Sep 17, 2024

Stored XSS in phpMyFAQ before 3.2.1 allows remote authenticated users to execute script in another user's browser. The Faq::renderRecordsByCategoryId method inserts a stored FAQ question into category output without converting it to HTML entities. An account able to create or edit an FAQ question must plant the payload, and a victim must view the affected category page; script then runs in that victim's phpMyFAQ origin.

CVSS severity7.4
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in phpMyFAQ before 3.2.1 allows remote authenticated users to execute script in another user's browser. The Faq::renderRecordsByCategoryId method inserts a stored FAQ question into category output without converting it to HTML entities. An account able to create or edit an FAQ question must plant the payload, and a victim must view the affected category page; script then runs in that victim's phpMyFAQ origin.

The record

CVE
CVE-2023-5864
Published
Oct 31, 2023
Updated
Sep 17, 2024
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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 <3.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=unspecified <3.2.1

Published CVSS scores

7.4huntr.devCVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.8NVDCVSS: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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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