CVE-2021-24811Public exploitNetwork attack vector

Admin-level stored cross-site scripting

Published Nov 29, 2021 · Updated Aug 3, 2024

Cross-site scripting in Shop Page WP before 1.2.8 allows remote authenticated administrators to inject stored script through Product fields. Affiliate URL, custom button text, and product description values are not sanitized or escaped before rendering, so crafted markup executes when a product page or editing screen is viewed. Exploitation requires a high-privilege WordPress account even when unfiltered_html is disabled, and the demonstrated impact is script execution in another user’s browser.

CVSS severity4.8
Medium
EPSS probability0.60%
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 Shop Page WP before 1.2.8 allows remote authenticated administrators to inject stored script through Product fields. Affiliate URL, custom button text, and product description values are not sanitized or escaped before rendering, so crafted markup executes when a product page or editing screen is viewed. Exploitation requires a high-privilege WordPress account even when unfiltered_html is disabled, and the demonstrated impact is script execution in another user’s browser.

The record

CVE
CVE-2021-24811
Published
Nov 29, 2021
Updated
Aug 3, 2024
Vendor
Leon Magee
Product
Shop Page WP
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 29, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=1.2.8 <1.2.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Leon Magee · Shop Page WPversion=1.2.8 <1.2.8

Published CVSS scores

3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
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 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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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