CVE-2025-9755 is a cross-site scripting (XSS) vulnerability identified in the Khanakag-17 Library Management System, specifically affecting an unspecified function within the /index.php file. The vulnerability arises from improper sanitization or validation of the 'msg' parameter, which can be manipulated by an attacker to inject malicious scripts. This vulnerability allows remote attackers to execute arbitrary JavaScript code in the context of the victim's browser without requiring authentication. The vulnerability has been publicly disclosed, increasing the risk of exploitation, although no known exploits are currently reported in the wild. The product uses a rolling release model, so exact affected versions beyond the commit hash 60ed174506094dcd166e34904a54288e5d10ff24 are not specified. The CVSS v4.0 base score is 5.3, indicating a medium severity level. The attack vector is network-based with low attack complexity, no privileges or authentication required, but user interaction is necessary (e.g., victim clicking a crafted link). The impact primarily affects the confidentiality and integrity of user data within the web application, potentially leading to session hijacking, phishing, or unauthorized actions performed on behalf of the user. Availability impact is minimal. The vulnerability does not involve scope or security requirements changes. Given the nature of the vulnerability, it is a classic reflected or stored XSS issue that can be leveraged to compromise users of the affected system.

For European organizations using the Khanakag-17 Library Management System, this vulnerability poses a moderate risk. Library management systems often handle sensitive patron data, including personal information and borrowing history. Exploitation could lead to theft of session cookies, enabling attackers to impersonate legitimate users, potentially accessing or modifying user data. This could result in privacy violations under GDPR, leading to regulatory penalties. Additionally, attackers could use the XSS vulnerability to deliver malware or conduct phishing attacks targeting library users or staff. While the vulnerability does not directly impact system availability, the reputational damage and loss of trust could be significant. Organizations with public-facing library portals are particularly at risk, as the attack requires user interaction via crafted URLs or messages. The medium severity rating suggests that while the threat is not critical, it should be addressed promptly to prevent exploitation, especially in environments with high user traffic or sensitive data.

To mitigate CVE-2025-9755, organizations should implement the following specific measures: 1) Apply input validation and output encoding on the 'msg' parameter and any other user-controllable inputs to ensure that injected scripts cannot be executed. Use context-aware encoding (e.g., HTML entity encoding) to neutralize malicious payloads. 2) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the browser context, limiting the impact of any successful injection. 3) Update the Khanakag-17 Library Management System to the latest version as soon as a patch addressing this vulnerability is released, given the rolling release model. 4) Conduct regular security testing, including automated scanning and manual code reviews focusing on input handling in web interfaces. 5) Educate users and staff about the risks of clicking on suspicious links or messages, reducing the likelihood of successful social engineering. 6) Monitor web server logs for unusual request patterns targeting the 'msg' parameter to detect potential exploitation attempts early. 7) If immediate patching is not possible, consider implementing web application firewall (WAF) rules to detect and block common XSS attack payloads targeting the vulnerable parameter.