A vulnerability was detected in crmeb_java up to 1.3.4. This vulnerability allows for unrestricted upload of files through a manipulation of the argument model in the UploadServiceImpl.java file. Given the nature of this vulnerability, remote exploitation is possible.
The CVSS v4.0 base score of this vulnerability is 2, categorizing it as low severity. However, the potential for exploitation still exists, and organizations should take note of this vulnerability's implications on their security posture.
The vendor was contacted early about this disclosure but did not respond in any way. This lack of communication emphasizes the importance of proactive security measures. Organizations using affected versions should prioritize patching.
Organizations are encouraged to assess their exposure to this vulnerability and implement necessary remediation strategies.
Vulnerability Details
The vulnerability identified as CVE-2026-7673 affects the crmeb_java component, specifically versions up to 1.3.4. The vulnerability is associated with the UploadServiceImpl.java file in the Admin Upload component. The primary weaknesses include CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type).
The CVSS score of this vulnerability is 2, indicating a low severity level, and it has a low potential impact on confidentiality, integrity, and availability.
The vulnerability was published on May 3, 2026, and remains in a 'Received' status as of the last modification date.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of user input within the UploadServiceImpl.java file. By manipulating the argument model, an attacker can upload arbitrary files, leading to potential exploitation.
The attack vector for this vulnerability is network-based, requiring a high level of privileges to exploit, although no user interaction is necessary. This further complicates the security landscape, as an attacker with the right credentials could exploit the vulnerability without alerting users.
The confidentiality, integrity, and availability impacts are all rated as low, indicating that while the vulnerability exists, the overall risk may be somewhat contained under specific circumstances.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access to sensitive data and the possibility of executing arbitrary code through uploaded files.
The blast radius for this vulnerability could be extensive, especially in environments where the affected system is integrated with more critical infrastructure or data repositories.
Organizations should assess their exposure to this vulnerability and prioritize it within their patching cycles, especially considering that the exploit is now public.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected, specifically crmeb_java up to 1.3.4.
Mitigation & Remediation
Organizations should review their systems and apply patches as soon as they are available. In the event that a patch is not immediately available, consider implementing workarounds such as restricting file upload functionality until a resolution is provided.
Configuration hardening can also help mitigate risks. Additionally, consider implementing network controls to limit access to vulnerable components.
Organizations can validate the effectiveness of their remediation through penetration testing to ensure no similar weaknesses remain.
Detection Guidance
Monitoring logs for indicators of abnormal file uploads can help in the early detection of exploitation attempts. Additionally, organizations should be aware of any behavioral anomalies associated with the UploadServiceImpl.java functionality.
Network signatures may also assist in identifying unauthorized access attempts targeting the affected component.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-7673 lies in its reflection of broader trends in file upload vulnerabilities, which remain a common vector for attacks.
Security teams should prioritize awareness of similar vulnerabilities, as they can lead to significant breaches if not addressed timely.
Organizations can benefit from establishing a robust security framework that incorporates proactive measures, such as regular security assessments and vulnerability management programs, to mitigate the risk of exploitation.
Furthermore, establishing a culture of security awareness among developers and stakeholders can lead to the early identification and remediation of potential vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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