CVE-2024-4057Public exploitNetwork attack vector

Stored XSS via unescaped Lottie animation URL

Published Jun 4, 2024 · Updated Aug 1, 2024

Stored XSS in Kadence WP Kadence Blocks before 3.2.37 allows remote authenticated users to run scripts through crafted Lottie block URLs. The Lottie block renderer inserts the user-controlled fileUrl attribute into page markup without sufficient validation or output escaping. Contributor access is required to save the block; the script runs when another user previews or views the post and moves the pointer over its image.

CVSS severity5.9
Medium
EPSS probability0.37%
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 Kadence WP Kadence Blocks before 3.2.37 allows remote authenticated users to run scripts through crafted Lottie block URLs. The Lottie block renderer inserts the user-controlled fileUrl attribute into page markup without sufficient validation or output escaping. Contributor access is required to save the block; the script runs when another user previews or views the post and moves the pointer over its image.

The record

CVE
CVE-2024-4057
Published
Jun 4, 2024
Updated
Aug 1, 2024
Vendor
Kadence WP
Product
Kadence Blocks
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.2.37

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kadence WP · Kadence Blocksversion=0 <3.2.37

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.9WPScanCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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/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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