CVE-2023-2753Network attack vector

Stored script execution via retained HTML event attributes

Published May 17, 2023 · Updated Jan 22, 2025

Stored cross-site scripting in phpMyFAQ before 3.2.0-beta allows remote authenticated users to execute script through crafted FAQ content. FaqHelper::cleanUpContent removed script elements but returned serialized HTML without stripping event-handler attributes such as onerror. Exploitation requires permission to store crafted content and a user to render it, placing that content's script in the viewer's browser context.

CVSS severity5.4
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in phpMyFAQ before 3.2.0-beta allows remote authenticated users to execute script through crafted FAQ content. FaqHelper::cleanUpContent removed script elements but returned serialized HTML without stripping event-handler attributes such as onerror. Exploitation requires permission to store crafted content and a user to render it, placing that content's script in the viewer's browser context.

The record

CVE
CVE-2023-2753
Published
May 17, 2023
Updated
Jan 22, 2025
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 22, 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 <3.2.0-beta

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=unspecified <3.2.0-beta

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.2huntr.devCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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.

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 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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