What’s Vulnerable › Vulnerabilities

CVE-2023-5877: affiliate-toolkit < 3.4.3 - Unauthenticated SSRF

• Severity: critical (CVSS 9.8 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: yes
• Published: 2024-01-01 · updated 2026-06-17
• Weakness: CWE-862

Description

The affiliate-toolkit WordPress plugin before 3.4.3 lacks authorization and authentication for requests to it's affiliate-toolkit-starter/tools/atkp_imagereceiver.php endpoint, allowing unauthenticated visitors to make requests to arbitrary URL's, including RFC1918 private addresses, leading to a Server Side Request Forgery (SSRF) issue.

Affected products

• cservit affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display: before 3.4.3 — fixed in 3.4.3

How to fix

Upgrade to a fixed version: cservit affiliate-toolkit – Multi-Network Affiliate & Amazon Product Display 3.4.3. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/39ed4934-3d91-4924-8acc-25759fef9e81
• https://wpscan.com/vulnerability/39ed4934-3d91-4924-8acc-25759fef9e81

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