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CVE-2024-37536: WordPress Easy Custom Code (LESS/CSS/JS) Plugin <= 1.0.8 - Cross Site Scripting (XSS) vulnerability

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-21 · updated 2026-06-17
• Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Web357 Easy Custom Code (LESS/CSS/JS) – Live editing allows Stored XSS.This issue affects Easy Custom Code (LESS/CSS/JS) – Live editing: from n/a through 1.0.8.

Affected products

• Web357 Easy Custom Code (LESS/CSS/JS) – Live editing: before 1.0.9 — fixed in 1.0.9

How to fix

Upgrade to a fixed version: Web357 Easy Custom Code (LESS/CSS/JS) – Live editing 1.0.9. Check the vendor advisory for mitigations.

References

• https://patchstack.com/database/vulnerability/easy-custom-code/wordpress-easy-custom-code-less-css-js-plugin-1-0-8-cross-site-scripting-xss-vulnerability?_s_id=cve
• https://patchstack.com/database/vulnerability/easy-custom-code/wordpress-easy-custom-code-less-css-js-plugin-1-0-8-cross-site-scripting-xss-vulnerability?_s_id=cve

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