CVE-2024-10818Public exploitNetwork attack vector

Contributor-level stored XSS via unescaped height attribute

Published May 15, 2025 · Updated May 20, 2025

Stored XSS in Willington Vega JSFiddle Shortcode before 1.1.3 allows remote authenticated users to inject script through shortcode attributes. The jsfiddle shortcode renders the height attribute into iframe markup without validation or output escaping, so a crafted quote can add an event handler. Contributor access is required to save the shortcode, and the script executes when a user views and interacts with the affected page.

CVSS severity5.4
Medium
EPSS probability0.30%
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 Willington Vega JSFiddle Shortcode before 1.1.3 allows remote authenticated users to inject script through shortcode attributes. The jsfiddle shortcode renders the height attribute into iframe markup without validation or output escaping, so a crafted quote can add an event handler. Contributor access is required to save the shortcode, and the script executes when a user views and interacts with the affected page.

The record

CVE
CVE-2024-10818
Published
May 15, 2025
Updated
May 20, 2025
Vendor
Willington Vega
Product
JSFiddle Shortcode
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 15, 2025CVE publishedPublication date reported by the CVE source.
  2. May 20, 2025Record 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 <1.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Willington Vega · JSFiddle Shortcodeversion=0 <1.1.3

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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.

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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-79Cross-Site Scripting (XSS)
T1059.007Command and Scripting Interpreter: JavaScript

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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