CVE-2025-45236 is a stored cross-site scripting (XSS) vulnerability identified in the Edit Profile feature of DBSyncer version 2.0.6. This vulnerability arises from insufficient input validation or output encoding of the Nickname parameter, allowing an attacker to inject malicious scripts or HTML content that is persistently stored and later executed in the context of other users' browsers. The vulnerability is classified under CWE-79, which pertains to improper neutralization of input during web page generation. The CVSS 3.1 base score is 5.4 (medium severity), with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), requiring low privileges (PR:L), user interaction (UI:R), scope changed (S:C), and limited confidentiality and integrity impact (C:L/I:L) but no availability impact (A:N). Exploitation requires an attacker with some level of authenticated access to inject the payload, and the victim must interact with the malicious content for the script to execute. Although no known exploits are currently reported in the wild, the vulnerability poses a risk of session hijacking, defacement, or phishing attacks within the affected application environment. The lack of vendor or product details limits the ability to assess the broader ecosystem impact, but the vulnerability is specifically tied to DBSyncer v2.0.6, presumably a database synchronization tool or similar software.

For European organizations using DBSyncer v2.0.6, this vulnerability could lead to unauthorized execution of scripts within user sessions, potentially compromising user credentials, session tokens, or sensitive data accessible through the web interface. This can facilitate lateral movement within the network, data leakage, or manipulation of user profiles. Given the medium severity and requirement for some privilege and user interaction, the risk is moderate but non-negligible, especially in environments where DBSyncer is integrated with critical business processes or sensitive data repositories. The impact is heightened in sectors with strict data protection regulations such as GDPR, where exploitation could lead to compliance violations and reputational damage. Additionally, the persistent nature of stored XSS means that multiple users could be affected over time, increasing the attack surface and potential for widespread compromise.

Organizations should immediately audit their use of DBSyncer v2.0.6 and restrict access to the Edit Profile functionality to trusted users only. Input validation and output encoding should be implemented or enhanced on the Nickname parameter to neutralize malicious scripts. If vendor patches become available, prompt application is critical. In the absence of patches, deploying web application firewalls (WAFs) with custom rules to detect and block typical XSS payloads targeting the Nickname field can reduce risk. Additionally, security teams should monitor logs for unusual input patterns and user behavior indicative of exploitation attempts. User education on phishing and suspicious links can mitigate the risk posed by user interaction requirements. Finally, consider isolating or segmenting the DBSyncer environment to limit potential lateral movement in case of compromise.