CVE-2025-45236 in DBSyncer
Summary
by MITRE • 05/05/2025
A stored cross-site scripting (XSS) vulnerability in the Edit Profile feature of DBSyncer v2.0.6 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Nickname parameter.
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Analysis
by VulDB Data Team • 11/18/2025
The stored cross-site scripting vulnerability identified as CVE-2025-45236 resides within the Edit Profile functionality of DBSyncer version 2.0.6, representing a critical security flaw that enables attackers to persist malicious scripts within the application's database. This vulnerability specifically targets the Nickname parameter, which serves as an entry point for injecting crafted payloads that can be executed when other users view the affected profile information. The flaw manifests as a stored XSS vulnerability, meaning that once the malicious payload is submitted and stored in the database, it will automatically execute whenever users access the profile page without proper sanitization or encoding of the stored input data.
The technical exploitation of this vulnerability follows a pattern consistent with CWE-079, which categorizes cross-site scripting flaws as weaknesses in input validation and output encoding. Attackers can craft malicious payloads that leverage the Nickname field to inject JavaScript code or HTML elements that will execute in the context of other users' browsers. The stored nature of this vulnerability means that the malicious code persists in the application's backend storage, making it particularly dangerous as it can affect multiple users over time without requiring repeated exploitation attempts. This vulnerability falls under the ATT&CK technique T1566.001, which describes the use of malicious content in web applications to compromise user sessions or execute unauthorized commands.
The operational impact of CVE-2025-45236 extends beyond simple script execution, as it can potentially enable session hijacking, credential theft, and redirection to malicious websites. When users with administrative privileges view compromised profiles, attackers may gain elevated access to sensitive system functions or data. The vulnerability's persistence means that even if the initial injection occurs during a single editing session, the malicious payload continues to affect all users who encounter the affected profile data. This makes the vulnerability particularly dangerous in multi-user environments where profile information is frequently accessed and shared. The attack vector relies on insufficient input validation and output encoding practices, where the application fails to properly sanitize user-supplied data before storing it and subsequently rendering it to other users.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data handling pipeline. The primary remediation involves sanitizing all user inputs, particularly those stored in databases, through proper encoding techniques that prevent script execution in web contexts. Applications should implement Content Security Policy headers to limit script execution capabilities and employ proper input validation that rejects or removes potentially dangerous characters and sequences. The fix should include implementing strict validation of the Nickname parameter to ensure it conforms to expected formats and does not contain executable code or script tags. Organizations should also consider implementing automated security scanning tools that can detect similar vulnerabilities in other application components and maintain regular security updates to prevent exploitation of known vulnerabilities. Additionally, the application should implement proper access controls and monitoring to detect unusual profile modification activities that may indicate attempted exploitation of this vulnerability.