CVE-2023-2029Public exploitNetwork attack vector

Stored XSS via unsanitized Account API key

Published Jul 10, 2023 · Updated Feb 13, 2025

Stored XSS in the Enzipe PrePost SEO WordPress plugin 3.0 and earlier allows remote authenticated users to execute script via plugin settings. The Account API key setting accepts an HTML payload without proper sanitization, stores it, and renders it so the embedded event handler executes when the saved setting is viewed. Administrator-level access is required to store the payload, and script execution occurs only when a viewer loads the saved setting, including where WordPress denies unfiltered_html in multisite.

CVSS severity4.8
Medium
EPSS probability0.63%
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 the Enzipe PrePost SEO WordPress plugin 3.0 and earlier allows remote authenticated users to execute script via plugin settings. The Account API key setting accepts an HTML payload without proper sanitization, stores it, and renders it so the embedded event handler executes when the saved setting is viewed. Administrator-level access is required to store the payload, and script execution occurs only when a viewer loads the saved setting, including where WordPress denies unfiltered_html in multisite.

The record

CVE
CVE-2023-2029
Published
Jul 10, 2023
Updated
Feb 13, 2025
Vendor
Enzipe
Product
PrePost SEO
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=0 <=3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Enzipe · PrePost SEOversion=0 <=3.0

Published CVSS scores

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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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