CVE-2025-52751 is a reflected Cross-site Scripting (XSS) vulnerability affecting the colome Slide Puzzle application, versions up to and including 1.0.0. The vulnerability stems from improper neutralization of input during the generation of web pages, which allows an attacker to inject malicious scripts that are reflected back to the user. This reflected XSS does not require any privileges or authentication but does require user interaction, typically by convincing a user to click on a crafted URL containing malicious payloads. The CVSS v3.1 base score is 7.1, indicating a high severity level, with vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, meaning the attack can be launched remotely over the network with low attack complexity, no privileges, but requires user interaction. The scope is changed, indicating that the vulnerability affects resources beyond the initially vulnerable component. The impact includes partial loss of confidentiality, integrity, and availability, as attackers can execute arbitrary scripts in the context of the victim’s browser, potentially stealing session tokens, manipulating web content, or causing denial of service. No known exploits are currently reported in the wild, and no patches have been released yet. The vulnerability was reserved in June 2025 and published in October 2025. The lack of patches necessitates immediate mitigation efforts by affected organizations. The Slide Puzzle application is a niche product, but its usage in educational or entertainment contexts could expose users to risk if exploited.

For European organizations, the impact of CVE-2025-52751 depends largely on the extent of Slide Puzzle deployment. Organizations using this software in educational, recreational, or promotional contexts may face risks of session hijacking, data leakage, or unauthorized actions performed via injected scripts. Since the vulnerability allows execution of arbitrary scripts, attackers could steal sensitive information, manipulate user sessions, or deliver further malware payloads. This could lead to reputational damage, compliance issues under GDPR due to data breaches, and operational disruptions. The requirement for user interaction means phishing or social engineering campaigns could be used to exploit this vulnerability. European entities with large user bases or those integrating Slide Puzzle into web portals may see increased risk. The absence of known exploits currently reduces immediate threat but does not eliminate future risk, especially as attackers often weaponize such vulnerabilities rapidly after disclosure.

1. Implement strict input validation and output encoding on all user-supplied data within the Slide Puzzle application to neutralize malicious scripts. 2. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 3. Educate users to avoid clicking on suspicious or unsolicited links, especially those purporting to lead to the Slide Puzzle application. 4. Monitor network traffic and logs for unusual requests that may indicate exploitation attempts. 5. Segregate the Slide Puzzle application environment to limit potential lateral movement if compromised. 6. Stay alert for official patches or updates from colome and apply them immediately upon release. 7. Consider deploying web application firewalls (WAFs) with rules to detect and block reflected XSS payloads targeting Slide Puzzle. 8. Conduct regular security assessments and penetration testing focused on web application vulnerabilities including XSS.