CVE-2025-66533Network attack vector

Unauthenticated content injection via unsanitized block attributes

Published Dec 9, 2025 · Updated Apr 28, 2026

Content injection in StellarWP GiveWP 4.13.1 and earlier allows remote attackers to inject content through public campaign blocks. Donor-wall and campaign block attributes reach WordPress shortcode rendering without sufficient sanitization, allowing attacker-supplied shortcodes to run. No authentication is required; the bounded consequence is attacker-controlled page or post content, including phishing content.

CVSS severity5.3
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Content injection in StellarWP GiveWP 4.13.1 and earlier allows remote attackers to inject content through public campaign blocks. Donor-wall and campaign block attributes reach WordPress shortcode rendering without sufficient sanitization, allowing attacker-supplied shortcodes to run. No authentication is required; the bounded consequence is attacker-controlled page or post content, including phishing content.

The record

CVE
CVE-2025-66533
Published
Dec 9, 2025
Updated
Apr 28, 2026
Vendor
Liquid Web
Product
GiveWP
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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 <=4.13.1 changes=[{"at":"4.13.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Liquid Web · GiveWPversion=0 <=4.13.1 changes=[{"at":"4.13.2","status":"unaffected"}]

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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