CVE-2021-24531Public exploitNetwork attack vector

Campaign Manager script execution via unfiltered donor names

Published Aug 23, 2021 · Updated Aug 3, 2024

Stored XSS in WP Charitable LLC Charitable before 1.6.51 allows remote authenticated users to execute scripts through added donations. The add-donation form saves attacker-controlled first- or last-name values without filtering them because the Campaign Manager role held the unfiltered_html capability. Campaign Manager access is required, and the stored payload executes when the donation record is viewed in the WordPress administrative interface.

CVSS severity5.4
Medium
EPSS probability0.58%
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 WP Charitable LLC Charitable before 1.6.51 allows remote authenticated users to execute scripts through added donations. The add-donation form saves attacker-controlled first- or last-name values without filtering them because the Campaign Manager role held the unfiltered_html capability. Campaign Manager access is required, and the stored payload executes when the donation record is viewed in the WordPress administrative interface.

The record

CVE
CVE-2021-24531
Published
Aug 23, 2021
Updated
Aug 3, 2024
Vendor
WP Charitable LLC
Product
Charitable
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 23, 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=1.6.51 <1.6.51

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WP Charitable LLC · Charitableversion=1.6.51 <1.6.51

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/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')
T1059.007JavaScript/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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