Stored script execution via unescaped Countdown content
Published Nov 21, 2024 · Updated Apr 8, 2026
Stored XSS in Kadence Blocks 3.3.3 and earlier allows remote authenticated users to execute scripts through the Countdown block. The Countdown widget insufficiently sanitizes user-supplied block attributes and emits them without adequate output escaping into saved page markup. Contributor-level access is required to store a payload, which executes in the browser of any user who later views the injected page.
Summary
What happened
Stored XSS in Kadence Blocks 3.3.3 and earlier allows remote authenticated users to execute scripts through the Countdown block. The Countdown widget insufficiently sanitizes user-supplied block attributes and emits them without adequate output escaping into saved page markup. Contributor-level access is required to store a payload, which executes in the browser of any user who later views the injected page.
The record
- CVE
- CVE-2024-10785
- Published
- Nov 21, 2024
- Updated
- Apr 8, 2026
- Vendor
- Liquid Web
- Product
- Kadence Blocks
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 21, 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 <=3.3.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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