CVE-2024-9611 is a reflected Cross-Site Scripting vulnerability in the Increase upload file size & Maximum Execution Time limit WordPress plugin (all versions up to 2.0). The issue arises from the use of the add_query_arg function without proper escaping of URL parameters, allowing injection of malicious scripts via crafted URLs. This vulnerability can be exploited by unauthenticated attackers who trick users into clicking malicious links, leading to script execution in the user's browser context. The CVSS 3.1 base score is 6.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity with no impact on availability.

Successful exploitation allows an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to information disclosure or session hijacking. The vulnerability requires user interaction (clicking a crafted link) and does not require authentication. There is no reported impact on system availability. No known exploits are currently in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid clicking on suspicious links related to this plugin. Monitoring for updates from the plugin vendor or WordPress security advisories is recommended to apply any forthcoming patches promptly.