What’s Vulnerable › Vulnerabilities

CVE-2015-9359

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-08-28 · updated 2026-06-17
• Weakness: CWE-79

Description

The Jetpack plugin before 3.4.3 for WordPress has XSS via add_query_arg() and remove_query_arg().

Affected products

• Jetpack: before 3.4.3 — fixed in 3.4.3

How to fix

Upgrade to a fixed version: Jetpack 3.4.3. Check the vendor advisory for mitigations.

References

• https://blog.sucuri.net/2015/04/security-advisory-xss-vulnerability-affecting-multiple-wordpress-plugins.html
• https://jetpack.com/2015/04/20/jetpack-3-4-3-coordinated-security-update/
• https://blog.sucuri.net/2015/04/security-advisory-xss-vulnerability-affecting-multiple-wordpress-plugins.html
• https://jetpack.com/2015/04/20/jetpack-3-4-3-coordinated-security-update/

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