CVE-2025-22233 is a vulnerability in the Spring Framework that involves a potential bypass of the disallowedFields checks, despite the implementation of locale-independent, lowercase conversion for both configured disallowedFields patterns and request parameter names. This vulnerability affects multiple versions of the Spring Framework, including those that are currently in use.
The severity of this vulnerability is classified as low, with a CVSS score of 3.1, indicating a reduced risk to organizations. However, it is crucial for defenders to take note of this vulnerability, as it may expose sensitive data or lead to other unanticipated consequences.
Currently, there is no known exploit for this vulnerability, which means that attackers have not publicly demonstrated a way to leverage it. Nonetheless, organizations should remain vigilant and prioritize patching as part of their routine security practices.
Urgency for remediation is low, but organizations using the affected versions should plan for an upgrade in their patch cycles to prevent any potential bypass of security measures.
Vulnerability Details
CVE-2025-22233 allows for cases where it is possible to bypass the disallowedFields checks, which could lead to unauthorized access to sensitive data. The affected versions of the Spring Framework include:
Spring Framework versions affected include: 6.2.0 - 6.2.6, 6.1.0 - 6.1.19, 6.0.0 - 6.0.27, and 5.3.0 - 5.3.42. Older, unsupported versions are also affected.
The vulnerability was published on May 16, 2025. The Common Weakness Enumeration (CWE) classification associated with this vulnerability is CWE-20, indicating improper input validation.
Technical Analysis
The root cause of this vulnerability lies in the implementation of the disallowedFields checks, where there are still scenarios that allow bypass. The attack vector is classified as network-based, requiring no user interaction. The attack complexity is considered high, and the privileges required to exploit this vulnerability are low.
Although the confidentiality impact is none, the integrity impact is low, indicating that accidental modifications might occur. The availability impact remains none, suggesting that the attack does not affect service availability.
Risk & Impact Analysis
Organizations using the affected versions of the Spring Framework face a risk of unauthorized data exposure due to the potential bypass of security checks. This vulnerability's low severity does not diminish the importance of addressing it promptly.
The blast radius of this vulnerability can vary based on the deployment environment and the data sensitivity handled by the affected applications. Organizations should evaluate their risk and prioritize remediation based on the CVSS score.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the Spring Framework include:
6.2.0 - 6.2.6, 6.1.0 - 6.1.19, 6.0.0 - 6.0.27, and 5.3.0 - 5.3.42. Users should upgrade to the corresponding fixed versions: 6.2.7 for 6.2.x, 6.1.20 for 6.1.x, and 5.3.43 for 5.3.x.
Mitigation & Remediation
Organizations using affected versions should prioritize upgrading to the fixed versions as soon as possible to mitigate the risk associated with this vulnerability. No further mitigation steps are necessary once the upgrade is completed.
For users unable to upgrade immediately, it is advisable to use a dedicated model object with properties only for data binding or utilize constructor binding to enhance security. Additionally, consider using allowedFields instead of disallowedFields to further tighten security.
Detection Guidance
Organizations should monitor logs for indicators of attempts to bypass disallowedFields checks, including unusual input patterns or unauthorized data access requests. Behavioral anomalies may also indicate exploitation attempts.
AppSecure Threat Intelligence Insight
This vulnerability highlights the importance of thorough input validation and the necessity of keeping frameworks and libraries up to date to guard against potential exploits. Security teams should consider integrating regular upgrade cycles and vulnerability assessments into their development processes.
For further insights into security best practices, organizations may refer to our guide on penetration testing methodology and additional resources to enhance their security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)