CVE-2024-3972Public exploitNetwork attack vector

Stored XSS via forged settings update

Published Jun 14, 2024 · Updated Aug 1, 2024

Stored XSS in Davidjmiller Similarity for WordPress 3.0 and earlier allows remote attackers to inject scripts through a forged settings request. The plugin's options form accepts the limit field without a CSRF token or sanitization, then stores and renders the value without output escaping. Exploitation requires an authenticated administrator to open attacker-controlled HTML; the stored script then executes in an administrative browser context.

CVSS severity4.3
Medium
EPSS probability0.23%
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 Davidjmiller Similarity for WordPress 3.0 and earlier allows remote attackers to inject scripts through a forged settings request. The plugin's options form accepts the limit field without a CSRF token or sanitization, then stores and renders the value without output escaping. Exploitation requires an authenticated administrator to open attacker-controlled HTML; the stored script then executes in an administrative browser context.

The record

CVE
CVE-2024-3972
Published
Jun 14, 2024
Updated
Aug 1, 2024
Vendor
Davidjmiller
Product
Similarity
Classifications
CWE-79, CWE-352, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=0 <=3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Davidjmiller · Similarityversion=0 <=3.0

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.7CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

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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