CVE-2023-4281

MEDIUM

Activity Log WP <2.8.8 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-4281. PoCs published by b0marek.

AI-analyzed exploit summary The repository provides a functional proof-of-concept for CVE-2023-4281, demonstrating IP address spoofing in the Activity Log plugin by manipulating the 'Client-Ip' header in HTTP requests. The exploit leverages untrusted headers to falsify the client IP address, potentially obscuring malicious traffic sources.

Description

This Activity Log WordPress plugin before 2.8.8 retrieves client IP addresses from potentially untrusted headers, allowing an attacker to manipulate its value. This may be used to hide the source of malicious traffic.

Exploits (1)

nomisec WORKING POC
by b0marek · poc
https://github.com/b0marek/CVE-2023-4281

The repository provides a functional proof-of-concept for CVE-2023-4281, demonstrating IP address spoofing in the Activity Log plugin by manipulating the 'Client-Ip' header in HTTP requests. The exploit leverages untrusted headers to falsify the client IP address, potentially obscuring malicious traffic sources.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Activity Log plugin for WordPress (version 2.8.7 or earlier)
No auth needed
Prerequisites: Access to a vulnerable WordPress instance with the Activity Log plugin installed
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Third Party Advisory exploit vdb-entry technical-description
https://wpscan.com/vulnerability/f5ea6c8a-6b07-4263-a1be-dd033f078d49

Scores

CVSS v3 5.3
EPSS 0.0063
EPSS Percentile 45.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

Status published
Products (1)
activity_log_project/activity_log < 2.8.8
Published Sep 25, 2023
Tracked Since Feb 18, 2026