Administrator-level stored XSS via unescaped form option
Published Dec 13, 2024 · Updated Apr 8, 2026
Stored XSS in Kadence Blocks 3.2.53 and earlier allows remote authenticated users with administrator access to inject scripts. The Forms (Adv) block accepts a crafted family option and renders it into page output without validating or escaping the value. Exposure requires WordPress multisite or disabled unfiltered_html, and the stored script executes when an injected page is viewed.
Summary
What happened
Stored XSS in Kadence Blocks 3.2.53 and earlier allows remote authenticated users with administrator access to inject scripts. The Forms (Adv) block accepts a crafted family option and renders it into page output without validating or escaping the value. Exposure requires WordPress multisite or disabled unfiltered_html, and the stored script executes when an injected page is viewed.
The record
- CVE
- CVE-2024-12581
- Published
- Dec 13, 2024
- Updated
- Apr 8, 2026
- Vendor
- Liquid Web
- Product
- Kadence Blocks
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Dec 13, 2024CVE publishedPublication date reported by the CVE source.
- Apr 8, 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.
- Affected versionversion=0 <=3.2.53
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- WPScan Forms (Adv) family-option proof of conceptproof of concept · demonstrated
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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