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CWE-79 (在Web页面生成时对输入的转义处理不恰当(跨站脚本)) — Vulnerability Class 21934

21934 vulnerabilities classified as CWE-79 (在Web页面生成时对输入的转义处理不恰当(跨站脚本)). AI Chinese analysis included.

CWE-79 represents a critical input validation weakness where software fails to properly sanitize user-supplied data before rendering it in web pages. Attackers typically exploit this vulnerability by injecting malicious scripts, often JavaScript, into trusted websites. When other users view the compromised page, the embedded code executes in their browsers, allowing the attacker to steal session cookies, hijack accounts, or redirect victims to phishing sites. This breach of trust undermines user privacy and application integrity. To prevent such attacks, developers must implement robust input validation and output encoding strategies. By strictly filtering incoming data and ensuring that all dynamic content is properly escaped before being processed by the browser, developers can neutralize dangerous inputs and effectively mitigate the risk of cross-site scripting vulnerabilities.

MITRE CWE Description
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. There are many variants of cross-site scripting, characterized by a variety of terms or involving different attack topologies. However, they all indicate the same fundamental weakness: improper neutralization of dangerous input between the adversary and a victim.
Common Consequences (3)
Access Control, ConfidentialityBypass Protection Mechanism, Read Application Data
The most common attack performed with cross-site scripting involves the disclosure of private information stored in user cookies, such as session information. Typically, a malicious user will craft a client-side script, which -- when parsed by a web browser -- performs some activity on behalf of the…
Integrity, Confidentiality, AvailabilityExecute Unauthorized Code or Commands
In some circumstances it may be possible to run arbitrary code on a victim's computer when cross-site scripting is combined with other flaws, for example, "drive-by hacking."
Confidentiality, Integrity, Availability, Access ControlExecute Unauthorized Code or Commands, Bypass Protection Mechanism, Read Application Data
The consequence of an XSS attack is the same regardless of whether it is stored or reflected. The difference is in how the payload arrives at the server. XSS can cause a variety of problems for the end user that range in severity from an annoyance to complete account compromise. Some cross-site scri…
Mitigations (5)
Architecture and DesignUse a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482]. Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.
Implementation, Architecture and DesignUnderstand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required e…
Architecture and Design, ImplementationUnderstand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly throug…
Effectiveness: Limited
Architecture and DesignFor any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Architecture and DesignIf available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
Examples (2)
The following code displays a welcome message on a web page based on the HTTP GET username parameter (covers a Reflected XSS (Type 1) scenario).
$username = $_GET['username']; echo '<div class="header"> Welcome, ' . $username . '</div>';
Bad · PHP
http://trustedSite.example.com/welcome.php?username=<Script Language="Javascript">alert("You've been attacked!");</Script>
Attack
The following code displays a Reflected XSS (Type 1) scenario.
<% String eid = request.getParameter("eid"); %> ... Employee ID: <%= eid %>
Bad · JSP
<% protected System.Web.UI.WebControls.TextBox Login; protected System.Web.UI.WebControls.Label EmployeeID; ... EmployeeID.Text = Login.Text; %> <p><asp:label id="EmployeeID" runat="server" /></p>
Bad · ASP.NET
CVE IDTitleCVSSSeverityPublished
CVE-2024-0821 Cost of Goods Sold (COGS): Cost & Profit Calculator for WooCommerce <= 3.2.8 - Reflected Cross-Site Scripting — Cost of Goods: Product Cost & Profit Calculator for WooCommerce 6.1 Medium2024-02-20
CVE-2024-0658 Insert PHP Code Snippet <= 1.3.4 - Authenticated (Admin+) Stored Cross-Site Scripting — Insert PHP Code Snippet 4.4 Medium2024-02-20
CVE-2024-1445 Page scroll to id <= 1.7.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode — Page scroll to id 6.4 Medium2024-02-20
CVE-2024-1054 Booster for WooCommerce <= 7.1.6 - Authenticated (Contributor+) Stored Cross-Site Scripting — Booster for WooCommerce – PDF Invoices, Abandoned Cart, Variation Swatches & 100+ Tools 6.4 Medium2024-02-20
CVE-2024-0656 Password Protected <= 2.6.6 - Authenticated (Admin+) Stored Cross-Site Scripting — Password Protected — Lock Entire Site, Pages, Posts, Categories, and Partial Content 4.4 Medium2024-02-20
CVE-2024-1276 Essential Addons for Elementor – Best Elementor Templates, Widgets, Kits & WooCommerce Builders <= 5.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting — Essential Addons for Elementor – Popular Elementor Templates & Widgets 6.4 Medium2024-02-20
CVE-2024-1070 SiteOrigin Widgets Bundle <= 1.58.2 - Authenticated (Contributor+) Stored Cross-Site Scripting — SiteOrigin Widgets Bundle 6.4 Medium2024-02-20
CVE-2024-0621 Simple Share Buttons Adder <= 8.4.11 - Authenticated(Administrator+) Stored Cross-Site Scripting via CSS Settings — Simple Share Buttons Adder 4.4 Medium2024-02-20
CVE-2024-1496 Featured Image from URL (FIFU) <= 4.6.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via fifu_input_url — Featured Image from URL (FIFU) 6.4 Medium2024-02-20
CVE-2024-1586 Schema & Structured Data for WP & AMP <= 1.26 - Authenticated (Custom) Stored Cross-Site Scripting — Schema & Structured Data for WP & AMP 6.4 Medium2024-02-20
CVE-2024-1282 Email Encoder – Protect Email Addresses and Phone Numbers <= 2.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode — Email Encoder – Protect Email Addresses and Phone Numbers 6.4 Medium2024-02-20
CVE-2024-1408 ProfilePress <= 4.14.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via [edit-profile-text-box] shortcode — Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress 6.4 Medium2024-02-20
CVE-2024-1235 Elementor Addons by Livemesh <= 8.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting — Livemesh Addons by Elementor 6.4 Medium2024-02-20
CVE-2024-1411 PowerPack Addons for Elementor <= 2.7.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via Twitter Buttons Widget — PowerPack Addons for Elementor (Free Widgets, Extensions and Templates) 6.4 Medium2024-02-20
CVE-2024-1349 EmbedPress <= 3.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode — EmbedPress – PDF Embedder, Embed YouTube Videos, 3D FlipBook, Social feeds, Docs & more 6.4 Medium2024-02-20
CVE-2024-1425 EmbedPress <= 3.9.8 - Authenticated(Contributor+) Stored Cross-Site Scripting via Google Calendar Widget Link — EmbedPress – PDF Embedder, Embed YouTube Videos, 3D FlipBook, Social feeds, Docs & more 6.4 Medium2024-02-20
CVE-2024-1277 Ocean Extra <= 2.2.4 - Authenticated (Contributor+) Stored Cross-Site Scripting — Ocean Extra 6.4 Medium2024-02-20
CVE-2024-1519 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress <= 4.14.4 - Unauthenticated Stored Cross-Site Scripting — Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress 6.5 Medium2024-02-20
CVE-2024-1570 ProfilePress <= 4.14.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode — Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress 6.4 Medium2024-02-20
CVE-2024-0506 Elementor Website Builder – More than Just a Page Builder <= 3.18.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via get_image_alt — Elementor Website Builder – more than just a page builder 6.4 Medium2024-02-20
CVE-2024-1236 Essential Addons for Elementor – Best Elementor Templates, Widgets, Kits & WooCommerce Builders <= 5.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting — Essential Addons for Elementor – Popular Elementor Templates & Widgets 6.4 Medium2024-02-20
CVE-2023-6923 Matomo <= 4.15.3 - Reflected Cross-Site Scripting via idsite — Matomo Analytics – Powerful, Privacy-First Insights for WordPress 6.1 Medium2024-02-20
CVE-2024-0438 Happy Addons for Elementor <= 3.10.1 - Authenticated (Contributor+) Stored Cross-Site Scripting — Happy Addons for Elementor 6.4 Medium2024-02-20
CVE-2024-0442 Royal Elementor Addons and Templates <= 1.3.87 - Authenticated (Contributor+) Stored Cross-Site Scripting — Royal Addons for Elementor – Addons and Templates Kit for Elementor 6.4 Medium2024-02-20
CVE-2023-6806 Starbox <= 3.4.8 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Job Settings — Starbox – the Author Box for Humans 6.4 Medium2024-02-20
CVE-2024-1448 Sassy Social Share <= 3.3.56 - Authenticated (Contributor+) Stored Cross-Site Scripting — Social Sharing Plugin – Sassy Social Share 6.4 Medium2024-02-20
CVE-2024-0602 Yet Another Related Posts Plugin (YARPP) <= 5.30.9 - Authenticated(Administrator+) Stored Cross-Site Scripting via settings — YARPP – Yet Another Related Posts Plugin 4.4 Medium2024-02-20
CVE-2024-1447 Sydney Toolbox <= 1.25 - Authenticated (Contributor+) Stored Cross-Site Scripting — Sydney Toolbox 6.4 Medium2024-02-20
CVE-2024-0792 WP Shortcodes Plugin — Shortcodes Ultimate <= 7.0.1 - Authenticated(Contributor+) Stored Cross-Site Scripting via shortcode — WP Shortcodes Plugin — Shortcodes Ultimate 6.4 Medium2024-02-20
CVE-2024-1242 Premium Addons for Elementor <= 4.10.18 - Authenticated (Contributor+) Stored Cross-Site Scripting — Premium Addons for Elementor – Powerful Elementor Templates & Widgets 6.4 Medium2024-02-20

Vulnerabilities classified as CWE-79 (在Web页面生成时对输入的转义处理不恰当(跨站脚本)) represent 21934 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.