An open redirect vulnerability has been identified in Grafana OSS that can be exploited to achieve XSS attacks. This vulnerability allows attackers to redirect users to malicious sites, increasing the risk of phishing and other harmful activities. The vulnerability was introduced in Grafana v11.5.0 and poses a significant threat to organizations relying on this tool.
With a CVSS score of 7.6, this vulnerability is classified as high severity. Organizations should prioritize patching immediately to prevent unauthorized access and potential data breaches. It is crucial to understand that the open redirect can be chained with path traversal vulnerabilities to achieve XSS, further increasing the risk to users.
The urgency for defenders is heightened due to the potential exploitation of this vulnerability. The absence of a known exploit currently does not diminish the threat, and the possibility of future attacks remains. Therefore, organizations must act swiftly to remediate this issue.
Grafana has released fixes for this vulnerability in versions 12.0.2+security-01, 11.6.3+security-01, 11.5.6+security-01, 11.4.6+security-01, and 11.3.8+security-01, and it is imperative that organizations update their systems accordingly.
Vulnerability Details
This vulnerability allows for open redirects in Grafana OSS, which can be exploited to achieve XSS attacks. The vulnerability was officially documented and published on July 18, 2025. It is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation) and CWE-601 (URL Redirection to Untrusted Site ('Open Redirect')).
The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L, indicating a network attack vector with low attack complexity and requiring user interaction. This vulnerability has a confidentiality impact rated as high, an integrity impact rated as low, and an availability impact also rated as low.
Organizations should be aware that all versions prior to the security patches mentioned are affected. The details regarding the specific versions are vital for effective remediation.
Technical Analysis
The root cause of this vulnerability stems from improper handling of redirects, allowing attackers to exploit the open redirect feature. The attack vector is primarily network-based, meaning that an attacker could exploit this vulnerability remotely. The attack complexity is low, requiring no special privileges or user permissions.
User interaction is required for the attack to succeed, as victims must click on a malicious link. Once exploited, confidentiality could be severely impacted due to the potential exposure of sensitive information. Integrity and availability impacts are lower but still noteworthy.
Risk & Impact Analysis
Risk to organizations includes potential data breaches and unauthorized access, particularly for those utilizing Grafana OSS for sensitive data visualization. The blast radius for this vulnerability could extend to all users interacting with Grafana dashboards if not properly managed.
With an EPSS score of 0.040630000, this vulnerability is in the 88th percentile, indicating a higher likelihood of exploitation in the wild. Organizations should assess their deployment of Grafana and prioritize patching based on this risk assessment.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Specific versions affected include Grafana v11.5.0 and all prior versions. The vulnerability has been fixed in versions 12.0.2+security-01, 11.6.3+security-01, 11.5.6+security-01, 11.4.6+security-01, and 11.3.8+security-01.
Mitigation & Remediation
Organizations should ensure that they upgrade to the fixed versions of Grafana as soon as possible to mitigate this vulnerability. If immediate patching is not feasible, consider implementing network controls to limit access to the affected application. Additionally, proper input validation and sanitization mechanisms should be enforced to prevent exploitation.
For detailed recommendations on security best practices, organizations can refer to the guidance on penetration testing, which helps identify and remediate potential weaknesses.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual redirect patterns and user interactions that may indicate an attack. Behavioral anomalies and network signatures that deviate from normal operations should also be investigated.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential to expose organizations to XSS attacks through seemingly benign redirects. This highlights the importance of rigorous security practices in application development.
Security teams should learn from this vulnerability to improve their incident response and remediation strategies. Regular security assessments and updates are vital in maintaining a secure environment.
Organizations can enhance their security posture by adopting a vulnerability management program that emphasizes proactive identification and mitigation of risks.
Additionally, understanding the patterns of vulnerabilities like CVE-2025-6023 can guide organizations in their security strategies and help prioritize resources effectively.
For further reading on implementing effective security measures, organizations can explore resources on penetration testing methodology and security testing best practices to help mitigate such vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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