Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Medium
Likelihood Level	Low

Description

Using unsanitized variables in the ‘href’ attribute of anchor tags in React can allow attackers to inject ‘javascript:’ URLs. This can enable cross-site scripting (XSS) attacks if user input is not properly validated.

Impact

If exploited, an attacker could execute malicious JavaScript in the context of your users’ browsers, potentially stealing sensitive data, hijacking sessions, or performing actions on behalf of users. This compromises both user security and the integrity of your application.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Low
Likelihood Level	Low

Description

Setting the ‘X-XSS-Protection’ HTTP header to ‘0’ disables the browser’s built-in XSS filter, making the application more vulnerable to Cross-Site Scripting (XSS) attacks. This weakens an important layer of browser-side defense against malicious scripts.

Impact

If exploited, attackers could inject malicious scripts into web pages viewed by users, leading to data theft, session hijacking, or defacement. Disabling this protection increases the risk of XSS attacks succeeding, potentially compromising user data and trust.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Medium
Impact Level	Medium
Likelihood Level	Low

Description

Using Angular’s bypassSecurityTrust methods (like bypassSecurityTrustHtml or bypassSecurityTrustUrl) on data from users can allow untrusted input to be treated as safe, bypassing Angular’s built-in protections. This creates a risk of injecting malicious content directly into your app.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Low
Likelihood Level	Low

Description

Accepting user input and rendering it as HTML in Monaco Editor hovers with ‘supportHtml’ enabled can allow malicious scripts to execute in the browser. Avoid using untrusted or dynamic user input to generate hover content when HTML support is on.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Medium
Likelihood Level	Low

Description

Passing user-controlled data directly to the createNodesFromMarkup function can allow untrusted HTML or scripts to be injected into the page. This practice opens the door to cross-site scripting (XSS) attacks.

Impact

If exploited, an attacker could execute malicious scripts in users’ browsers, potentially stealing session cookies, accessing sensitive data, or performing actions on behalf of users. This compromises user security and trust, and could lead to data breaches or regulatory issues.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Medium
Likelihood Level	Low

Description

Passing user-controlled data directly into jQuery methods like html(), append(), or similar DOM manipulation functions can allow malicious scripts to be injected into the page. This creates a risk of Cross-Site Scripting (XSS) vulnerabilities if the input is not properly sanitized.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Medium
Likelihood Level	Low

Description

Using jQuery’s html() function can allow untrusted content to be injected directly into the page, leading to security risks like Cross-Site Scripting (XSS). If the input is not properly sanitized, attackers may execute malicious scripts in users’ browsers.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Medium
Likelihood Level	Low

Description

Using user-controlled input directly as a jQuery selector (e.g., $(’…’)) can allow malicious users to inject code into your page. This makes your application vulnerable to cross-site scripting (XSS) attacks.

Impact

If exploited, attackers could execute arbitrary JavaScript in the user’s browser, leading to stolen session cookies, account compromise, or manipulation of page content. This can result in data breaches, loss of user trust, and potential regulatory violations.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Medium
Impact Level	Medium
Likelihood Level	Medium

Description

User input is being written directly to the HTTP response without proper HTML escaping or sanitization. This allows attackers to inject malicious scripts into your web pages, leading to a Cross-Site Scripting (XSS) vulnerability.

Impact

If exploited, attackers can execute arbitrary JavaScript in users’ browsers, potentially stealing sensitive data, hijacking user sessions, or defacing your site. This puts both your users and your application’s reputation at serious risk.

Property
Language
Severity
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)
OWASP	A07:2017 - Cross-Site Scripting (XSS)
Confidence Level	Low
Impact Level	Medium
Likelihood Level	Low

Description

Overwriting the Mustache escape function disables the template engine’s automatic HTML escaping, making it easy for malicious input to be rendered directly into pages. This removes an important safeguard against injecting unsafe content.

Impact

If exploited, attackers could inject malicious scripts (XSS) into your application’s output, leading to data theft, session hijacking, or defacement. This undermines user trust and can expose sensitive data or allow attackers to take actions on behalf of users.