CVE-2024-29099: 
WordPress vulnerability analysis and mitigation

A Reflected Cross-Site Scripting (XSS) vulnerability was discovered in the Evergreen Content Poster WordPress plugin, affecting versions through 1.4.1. The vulnerability was reported on December 29, 2023, by Joshua Chan and was publicly disclosed on March 15, 2024 (Patchstack).

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) and has been assigned CVE-2024-29099. It received a CVSS v3.1 base score of 6.1 (Medium) from NVD with a vector string of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, while Patchstack assessed it with a higher CVSS score of 7.1 (High) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L (NVD).

This vulnerability could allow malicious actors to inject malicious scripts, such as redirects, advertisements, and other HTML payloads into the website which will be executed when visitors access the site (Patchstack).

The vulnerability can be exploited by unauthenticated attackers, making it particularly concerning. No user interaction is required for exploitation, though the attack requires user interaction to trigger the malicious payload (Patchstack).

Users are advised to update to version 1.4.2 or later to resolve the vulnerability. Patchstack has issued a virtual patch to mitigate this issue by blocking any attacks until users update to a fixed version (Patchstack).