What’s Vulnerable › Vulnerabilities

CVE-2021-24226: AccessAlly < 3.5.7 - $_SERVER Superglobal Leakage

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-12 · updated 2026-06-17
• Weakness: CWE-200

Description

In the AccessAlly WordPress plugin before 3.5.7, the file "resource/frontend/product/product-shortcode.php" responsible for the [accessally_order_form] shortcode is dumping serialize($_SERVER), which contains all environment variables. The leakage occurs on all public facing pages containing the [accessally_order_form] shortcode, no login or administrator role is required.

Affected products

• AccessAlly: before 3.5.7 — fixed in 3.5.7

How to fix

Upgrade to a fixed version: AccessAlly 3.5.7. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/8e3e89fd-e380-4108-be23-00e87fbaad16
• https://wpscan.com/vulnerability/8e3e89fd-e380-4108-be23-00e87fbaad16

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