What’s Vulnerable › Vulnerabilities

CVE-2015-9506

• Severity: medium (CVSS 6.1 v3.1)
• 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: 2019-10-23 · updated 2026-06-17
• Weakness: CWE-79

Description

The Easy Digital Downloads (EDD) Amazon S3 extension for WordPress, as used with EDD 1.8.x before 1.8.7, 1.9.x before 1.9.10, 2.0.x before 2.0.5, 2.1.x before 2.1.11, 2.2.x before 2.2.9, and 2.3.x before 2.3.7, has XSS because add_query_arg is misused.

Affected products

• smub Easy Digital Downloads – eCommerce Payments and Subscriptions made easy: from 1.8 before 1.8.7; from 1.9 before 1.9.10; from 2.0 before 2.0.5; from 2.1 before 2.1.11; from 2.2 before 2.2.9; from 2.3 before 2.3.7 — fixed in 1.8.7, 1.9.10, 2.0.5, 2.1.11, 2.2.9, 2.3.7
• Easydigitaldownloads Amazon S3: all versions

How to fix

Upgrade to a fixed version: smub Easy Digital Downloads – eCommerce Payments and Subscriptions made easy 1.8.7, 1.9.10, 2.0.5, 2.1.11. Check the vendor advisory for mitigations.

References

• https://web.archive.org/web/20160921003517/https://easydigitaldownloads.com/blog/security-fix-released/
• https://web.archive.org/web/20160921003517/https://easydigitaldownloads.com/blog/security-fix-released/

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