A vulnerability was found in projeto-siga siga 11.0.3.18. The affected element is an unknown function of the file /sigawf/app/responsavel/novo. Performing a manipulation of the argument Nome/Descrição results in cross site scripting. The attack can be initiated remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
With a CVSS score of 5.1, this vulnerability is classified as medium severity. Organizations should take this seriously as the potential for exploitation exists, and immediate actions are required to address it.
Risk to organizations includes unauthorized access to sensitive data through cross-site scripting attacks, which can lead to information theft or further system compromise.
Organizations should prioritize patching immediately.
This vulnerability is part of a broader trend where remote attacks exploit web applications, underscoring the importance of regular security assessments.
Vulnerability Details
The vulnerability allows for cross-site scripting (XSS), which is a type of injection attack where malicious scripts are injected into otherwise benign and trusted web applications. The affected version is projeto-siga siga 11.0.3.18, and the specific function affected is within the file /sigawf/app/responsavel/novo.
The CVSS score of 5.1 indicates a medium severity level, with an attack vector of NETWORK, low attack complexity, and low privileges required for exploitation. The vulnerability impacts integrity and has no confidentiality or availability impact.
The vulnerability was published on April 25, 2026, and is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation) and CWE-94 (Improper Control of Generation of Code (Code Injection)).
Technical Analysis
The root cause of this vulnerability lies in the improper handling of user input in the application. The application does not adequately sanitize input from the arguments Nome/Descrição, allowing attackers to inject malicious scripts.
The attack vector is network-based, meaning the attacker can exploit the vulnerability remotely without direct access to the system. The attack complexity is low, as it does not require advanced skills or knowledge to execute. The privileges required are also low, as a user with minimal access can initiate the attack.
User interaction is required, as the victim must visit a page that contains the malicious script. The integrity impact is low, indicating that the attacker may manipulate data, but there is no impact on confidentiality or availability.
Risk & Impact Analysis
Real-world deployment risk is significant, as the potential for exploitation through this XSS vulnerability is high if not addressed. Attackers may leverage this flaw to inject malicious scripts, which can lead to data theft, session hijacking, or the spread of malware.
This vulnerability matters to organizations as it represents a gap in web application security that can be exploited to compromise user data or application integrity. The blast radius is considerable, as any user interacting with the affected application could be impacted.
Urgency is assessed as medium due to the CVSS score of 5.1. Organizations should address this in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is projeto-siga siga 11.0.3.18. All versions prior to vendor patch are likely affected.
Mitigation & Remediation
To mitigate this vulnerability, organizations should ensure they update to the latest version of projeto-siga. If a patch is unavailable, consider implementing input validation and sanitization measures. Regular security assessments and penetration testing can also help identify such vulnerabilities before they are exploited.
Additionally, organizations should implement network controls and monitoring to detect and respond to any attempted exploitation of this vulnerability. For further guidance on security measures, organizations can refer to resources on penetration testing and secure coding practices.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual input patterns in the affected application. Additionally, they should look for behavioral anomalies indicating XSS attempts, such as unexpected redirects or script execution.
Network signatures can also be employed to identify malicious requests targeting the vulnerable parameters.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the ongoing threat of XSS attacks in web applications. It represents a pattern where insufficient input sanitization allows attackers to exploit unsuspecting users.
Security teams should take lessons from this incident, ensuring that proper input validation mechanisms are in place to prevent similar vulnerabilities. Regularly updating and patching applications is crucial to maintaining security.
For more insights into managing vulnerabilities, organizations can explore topics related to vulnerability management programs, penetration testing methodology, and API security best practices to strengthen defenses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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