CVE-2025-58807 is a high-severity vulnerability classified under CWE-352, indicating a Cross-Site Request Forgery (CSRF) issue in the Dsingh Purge Varnish Cache product, affecting versions up to 2.6. The vulnerability allows an attacker to perform unauthorized actions on behalf of an authenticated user by exploiting the lack of proper CSRF protections. Specifically, this vulnerability can lead to Stored Cross-Site Scripting (XSS), where malicious scripts are injected and persist within the application, potentially impacting users who interact with the affected cache management interface. The CVSS v3.1 score of 7.1 reflects a high risk, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impact affects confidentiality, integrity, and availability at a low to moderate level, as the attacker can manipulate cache purging operations and inject scripts that may compromise user sessions or data. No patches are currently available, and no known exploits have been reported in the wild as of the publication date (September 5, 2025).

For European organizations, this vulnerability poses a significant risk, especially for those relying on Dsingh Purge Varnish Cache to manage web content delivery and caching. Successful exploitation could allow attackers to manipulate cache purging processes, potentially causing denial of service or stale content delivery, which can disrupt business operations and degrade user experience. The Stored XSS aspect can lead to session hijacking, credential theft, or the spread of malware within corporate environments. Given the network attack vector and no requirement for privileges, attackers can target exposed management interfaces remotely. This is particularly concerning for organizations with public-facing cache management consoles or insufficient network segmentation. The compromise of cache integrity can also affect the confidentiality of sensitive data if cached content includes private information. The requirement for user interaction means phishing or social engineering could be used to trigger the attack, increasing the risk in environments with less security awareness.

European organizations should immediately audit their use of Dsingh Purge Varnish Cache and identify any exposed management interfaces. As no official patches are available, organizations should implement strict network access controls, limiting access to cache management interfaces to trusted internal IPs or VPN users only. Employ web application firewalls (WAF) with custom rules to detect and block CSRF and XSS attack patterns targeting the cache management endpoints. Implement CSRF tokens and verify their presence in all state-changing requests if possible by customizing or updating the application. Conduct user awareness training focused on phishing and social engineering to reduce the risk of user interaction exploitation. Monitor logs for unusual cache purge requests or unexpected script injections. Consider deploying Content Security Policy (CSP) headers to mitigate the impact of stored XSS. Finally, maintain close communication with the vendor for patch releases and apply updates promptly once available.