プラットフォーム
php
コンポーネント
reservation-management-module
修正版
1.0.1
CVE-2026-3819 describes a cross-site scripting (XSS) vulnerability discovered in SourceCodester Resort Reservation System, specifically within the Reservation Management Module. This flaw allows attackers to inject malicious scripts into the application, potentially compromising user sessions and data. The vulnerability affects version 1.0 of the system and has been publicly disclosed.
Successful exploitation of CVE-2026-3819 allows an attacker to execute arbitrary JavaScript code in the context of a victim's browser session. This can lead to various malicious actions, including session hijacking, credential theft, and defacement of the application. An attacker could potentially steal sensitive user data, such as reservation details or personal information. The impact is amplified if the application is used to manage critical resources or handle financial transactions.
This vulnerability has been publicly disclosed, increasing the likelihood of exploitation. While the CVSS score is LOW, the ease of exploitation and potential impact warrant attention. No known active campaigns or proof-of-concept exploits are currently publicly available, but the disclosure makes it a target for opportunistic attackers. The vulnerability was published on 2026-03-09.
Resorts and hospitality businesses utilizing SourceCodester Resort Reservation System version 1.0 are at direct risk. Shared hosting environments where multiple applications share resources are particularly vulnerable, as a compromise of one application could potentially lead to the exploitation of this vulnerability in others.
• generic web:
curl -I 'https://your-target-domain.com/?page=manage_reservation&ID=<script>alert(1)</script>' | grep -i 'content-type: text/html'• generic web:
curl 'https://your-target-domain.com/?page=manage_reservation&ID=<script>alert(1)</script>' | grep -o '<[^>]+>' | grep -q scriptdisclosure
エクスプロイト状況
EPSS
0.01% (1% パーセンタイル)
CISA SSVC
CVSS ベクトル
The primary mitigation for CVE-2026-3819 is to upgrade to a patched version of SourceCodester Resort Reservation System. Since a fixed version isn't specified, consider rolling back to a previous, known-stable version if the upgrade causes compatibility issues. Implementing a Web Application Firewall (WAF) with rules to filter out potentially malicious input in the ID parameter of the /?page=manage_reservation endpoint can provide an immediate layer of protection. Input validation and output encoding on the server-side are also crucial preventative measures.
SourceCodester Resort Reservation System を 1.0 よりも新しいバージョンにアップデートするか、予約管理モジュールで悪意のあるスクリプトの実行を防ぐために必要なセキュリティ対策を講じてください。ID パラメータのユーザー入力を検証およびサニタイズして、XSS 攻撃を防ぎます。
脆弱性分析と重要アラートをメールでお届けします。
CVE-2026-3819 is a cross-site scripting (XSS) vulnerability in SourceCodester Resort Reservation System 1.0, allowing attackers to inject malicious scripts via the /?page=manage_reservation endpoint.
You are affected if you are using SourceCodester Resort Reservation System version 1.0 and have not applied a patch or implemented mitigating controls.
Upgrade to a patched version of SourceCodester Resort Reservation System. If upgrading is not immediately possible, implement WAF rules and input validation as temporary mitigations.
While no active campaigns are confirmed, the public disclosure increases the risk of exploitation by opportunistic attackers.
Refer to the SourceCodester website or relevant security forums for updates and advisories regarding CVE-2026-3819.