Platform
php
Component
simple-flight-booking-xss
Fixed in
1.0.1
CVE-2026-3763 describes a cross-site scripting (XSS) vulnerability discovered in the Simple Flight Ticket Booking System, version 1.0. This flaw allows attackers to inject malicious scripts into the application, potentially compromising user sessions and stealing sensitive data. The vulnerability resides within an unknown function of the showhistory.php file and can be exploited remotely. A public proof-of-concept exists, increasing the risk of exploitation.
Successful exploitation of CVE-2026-3763 enables an attacker to execute arbitrary JavaScript code within the context of a user's browser session. This can lead to various malicious outcomes, including session hijacking, phishing attacks, and defacement of the application. An attacker could steal user credentials, redirect users to malicious websites, or inject malware. The impact is amplified if the application handles sensitive data, such as flight booking information or payment details. Given the public availability of a proof-of-concept, the risk of exploitation is considered high.
CVE-2026-3763 has been publicly disclosed and a proof-of-concept is available, indicating a high probability of exploitation. The vulnerability is not currently listed on CISA KEV. The public availability of the exploit suggests that attackers are actively seeking to exploit this vulnerability. The NVD publication date is 2026-03-08.
Exploit Status
EPSS
0.03% (8% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-3763 is to upgrade to a patched version of the Simple Flight Ticket Booking System. Since a fixed version is not specified, immediate action is crucial. As a temporary workaround, implement strict input validation and output encoding on all user-supplied data, particularly within the showhistory.php file. Employ a Web Application Firewall (WAF) with XSS protection rules to filter out malicious requests. Regularly scan the application for XSS vulnerabilities using automated tools. After implementing these mitigations, thoroughly test the application to ensure that the vulnerability has been effectively addressed.
Update to a patched version of the flight ticket booking system. If no version is available, review and sanitize user input in the showhistory.php file to prevent XSS code execution. Alternatively, consider disabling or removing the system if it cannot be secured.
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CVE-2026-3763 is a cross-site scripting (XSS) vulnerability affecting Simple Flight Ticket Booking System version 1.0, allowing attackers to inject malicious scripts via the showhistory.php file.
If you are using Simple Flight Ticket Booking System version 1.0, you are potentially affected. Immediate action is required to mitigate the risk.
Upgrade to a patched version of the Simple Flight Ticket Booking System. If a patch is unavailable, implement strict input validation and output encoding as temporary mitigations.
Due to the public availability of a proof-of-concept, CVE-2026-3763 is likely being actively exploited or targeted by attackers.
Refer to the Simple Flight Ticket Booking System's official website or security advisory page for the latest information and updates regarding CVE-2026-3763.
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