Is CVE-2023-5877 actively exploited?

No active exploitation of CVE-2023-5877 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-5877 be exploited remotely?

Yes. CVE-2023-5877 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-5877?

CVE-2023-5877 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-5877

CWE-862Published: January 1, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Risk Analysis

The affiliate-toolkit WordPress plugin contains a Server Side Request Forgery (SSRF) vulnerability due to missing authentication on a specific endpoint. This critical flaw allows unauthenticated users to make requests to arbitrary URLs, including internal network addresses.

No public exploit is known, and it is not in the KEV catalog. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Update the affiliate-toolkit plugin to version 3.4.3 or later to ensure proper authentication is enforced.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-5877 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.