AcuToWeb - XSS (CVE-2024-42852)

CVE-2024-42852 is a cross-site scripting (XSS) vulnerability in AcuToWeb server version 10.5.0.7577C8b, specifically affecting the index.php component. This flaw allows remote attackers to inject and execute arbitrary code in the context of a user's browser session, potentially leading to data theft or session hijacking through malicious scripts.

CrowdSec has been tracking this vulnerability and its exploits since 24th of July 2025.

Data from the CrowdSec community indicates that exploitation of CVE-2024-42852 is highly selective and intelligence-driven. Threat actors use advanced reconnaissance and carefully choose their targets, often as part of sophisticated campaigns or advanced persistent threat operations. CrowdSec network telemetry also shows that exploitation of CVE-2024-42852 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.

Attackers exploit the portgw query parameter to inject XSS payloads, enabling arbitrary JavaScript execution in browsers visiting the vulnerable AcuToWeb endpoint.