A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
The CVSS score for this vulnerability is 4.8, which is classified as medium severity. This score reflects the potential impact and likelihood of exploitation, with the attack vector being network-based and requiring user interaction.
Organizations should prioritize patching immediately to mitigate this vulnerability. Given the nature of the stored XSS attack and the potential for significant impact, it is crucial to address this issue promptly.
As of now, there are no known exploits or public proofs of concept available for this vulnerability, but the risk remains due to its nature. Organizations should remain vigilant and monitor for any updates or advisories from Cisco.
Vulnerability Details
The vulnerability allows attackers to execute arbitrary code in the context of the web interface, which can lead to unauthorized access to sensitive information. The CWE classification for this vulnerability is CWE-79, indicating a cross-site scripting issue.
The vulnerability was published on April 1, 2026, and is currently awaiting analysis. Organizations utilizing Cisco IMC should consult their security teams to evaluate exposure and implement necessary measures.
Technical Analysis
The root cause of this vulnerability is insufficient validation of user input, which allows attackers to inject malicious scripts into the web interface. The attack complexity is assessed as low, and the likelihood of successful exploitation is increased due to the requirement for high privileges and user interaction.
The attack vector is network-based, and the potential impacts on confidentiality and integrity are categorized as low, while there is no impact on availability. This means that while sensitive data could be accessed or manipulated, the overall functionality of the system remains intact.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive data and potential manipulation of user sessions. The blast radius for this vulnerability could be significant, especially in environments where Cisco IMC is widely utilized for managing infrastructure.
Organizations should address this vulnerability in their priority patch cycle, especially considering the nature of the stored XSS attack, which could lead to further exploitation if left unpatched.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected by this vulnerability.
Mitigation & Remediation
Organizations should implement patches or updates from Cisco to remediate this vulnerability. For those unable to apply updates immediately, consider configuration hardening and network controls to restrict access to the web interface. Regular monitoring for unusual activity is also recommended.
For effective remediation, organizations can validate patch effectiveness through penetration testing to identify similar weaknesses.
Detection Guidance
Monitor logs for unusual access patterns, particularly to the Cisco IMC web interface. Look for behavioral anomalies such as unexpected script executions or unauthorized access attempts. Network signatures should be established to detect potential exploit attempts.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its representation of broader trends in web application security, particularly with input validation flaws leading to XSS vulnerabilities. Security teams should learn from this incident to bolster their defenses against similar vulnerabilities.
Organizations can enhance their security posture by adopting vulnerability management programs that proactively identify and mitigate risks.
Additionally, investing in penetration testing methodology can provide insights into potential weaknesses across the infrastructure.
Lastly, organizations should consider adopting a continuous security strategy, as detailed in the cloud security assessment guide to ensure ongoing protection against evolving threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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