WordPress · Affiliate-Toolkit · CVE-2023-5877
**Name of the Vulnerable Software and Affected Versions**
affiliate-toolkit WordPress plugin version 3.4.2 and earlier
**Description**
The issue is related to a lack of authorization and authentication for requests to the "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.
**Recommendations**
For versions prior to 3.4.3, update to version 3.4.3 or later to resolve the issue.
As a temporary workaround, consider disabling access to the "affiliate-toolkit-starter/tools/atkp imagereceiver.php" endpoint until a patch is available.
Restrict access to the endpoint to minimize the risk of exploitation.