> For the complete documentation index, see [llms.txt](https://docs.snyk.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snyk.io/scan-fix-and-prevent/scan-with-snyk/snyk-code/snyk-code-security-rules/javascript-and-typescript-rules.md). # JavaScript and TypeScript rules Each rule includes the following information. * **Rule Name**: The Snyk name of the rule. * **CWEs**: The [CWE numbers](https://cwe.mitre.org/) the rule covers. * **Security Categories**: The [OWASP Top 10](https://owasp.org/Top10/2025/) (2025 edition) category the rule maps to, when applicable. This column also notes whether the rule appears in the [CWE Top 25](https://cwe.mitre.org/top25/), and any applicable [OWASP API Security Top 10](https://owasp.org/API-Security/editions/2023/en/0x11-t10/) (2023) or [OWASP Mobile Top 10](https://owasp.org/www-project-mobile-top-10/) (2024) categories. | Rule Name | CWEs | Security Categories | | ----------------------------------------------------------------------------------------------------------------- | ----------------------- | ---------------------------------------------------------------------- | | Disabling Strict Contextual escaping (SCE) could provide additional attack surface for Cross-site Scripting (XSS) | CWE-79 | CWE Top 25, OWASP:A05:2025 | | Use of a Broken or Risky Cryptographic Algorithm | CWE-327 | OWASP:A04:2025 | | Clear Text Sensitive Storage | CWE-200, CWE-312 | CWE Top 25, OWASP:A01:2025, OWASP:A06:2025, OWASP-API:API10:2023 | | Code Injection | CWE-94 | CWE Top 25, OWASP:A05:2025 | | Command Injection | CWE-78 | CWE Top 25, OWASP:A05:2025 | | Cross-site Scripting (XSS) | CWE-79 | CWE Top 25, OWASP:A05:2025 | | Deserialization of Untrusted Data | CWE-502 | CWE Top 25, OWASP:A08:2025 | | Information Exposure | CWE-200 | CWE Top 25, OWASP:A01:2025, OWASP-API:API10:2023 | | Electron Disable Security Warnings | CWE-16 | OWASP:A02:2025, OWASP-API:API8:2023 | | Electron Insecure Web Preferences | CWE-16 | OWASP:A02:2025, OWASP-API:API8:2023 | | Electron Load Insecure Content | CWE-16 | OWASP:A02:2025, OWASP-API:API8:2023 | | Use of Externally-Controlled Format String | CWE-134 | None | | GraphQL Injection | CWE-89 | CWE Top 25, OWASP:A05:2025 | | Improper Type Validation | CWE-1287 | None | | Hardcoded Secret | CWE-547 | OWASP:A02:2025 | | Cleartext Transmission of Sensitive Information | CWE-319 | OWASP:A04:2025, OWASP-API:API8:2023, OWASP-API:API10:2023 | | Improper Code Sanitization | CWE-94, CWE-79, CWE-116 | CWE Top 25, OWASP:A05:2025 | | Use of Password Hash With Insufficient Computational Effort | CWE-916 | OWASP:A04:2025 | | Use of Insufficiently Random Values | CWE-330 | OWASP:A04:2025 | | Insecure TLS Configuration | CWE-327 | OWASP:A04:2025 | | Insufficient postMessage Validation | CWE-20 | CWE Top 25, OWASP:A05:2025, OWASP-API:API10:2023, OWASP-Mobile:M4:2024 | | Introspection Enabled | CWE-200 | CWE Top 25, OWASP:A01:2025, OWASP-API:API10:2023 | | Insecure JWT Verification Method | CWE-347 | OWASP:A04:2025 | | JWT Signature Verification Method Disabled | CWE-347 | OWASP:A04:2025 | | JWT 'none' Algorithm Supported | CWE-347 | OWASP:A04:2025 | | Denial of Service (DoS) through Nested GraphQL Queries | CWE-400 | OWASP-API:API4:2023 | | Unchecked Input for Loop Condition | CWE-400, CWE-606 | OWASP-API:API4:2023 | | Observable Timing Discrepancy (Timing Attack) | CWE-208 | None | | Use of Hardcoded Credentials | CWE-798 | OWASP:A07:2025 | | Use of Hardcoded Passwords | CWE-798, CWE-259 | OWASP:A07:2025 | | Allocation of Resources Without Limits or Throttling | CWE-770 | CWE Top 25, OWASP-API:API4:2023 | | NoSQL Injection | CWE-943 | None | | Buffer Over-read | CWE-126 | None | | Open Redirect | CWE-601 | OWASP:A01:2025 | | Path Traversal | CWE-23 | OWASP:A01:2025 | | Prototype Pollution | CWE-1321 | None | | Use dangerouslySetInnerHTML to Explicitly Handle XSS Risks | CWE-79 | CWE Top 25, OWASP:A05:2025 | | Weak Password Recovery Mechanism for Forgotten Password | CWE-640 | OWASP:A07:2025 | | SQL Injection | CWE-89 | CWE Top 25, OWASP:A05:2025 | | Server-Side Request Forgery (SSRF) | CWE-918 | CWE Top 25, OWASP:A01:2025, OWASP-API:API7:2023 | | Improper Neutralization of Directives in Statically Saved Code | CWE-96 | OWASP:A05:2025 | | Origin Validation Error | CWE-942, CWE-346 | OWASP:A02:2025, OWASP:A07:2025, OWASP-API:API8:2023 | | Permissive Cross-domain Policy | CWE-942 | OWASP:A02:2025, OWASP-API:API8:2023 | | Improper Restriction of Rendered UI Layers or Frames | CWE-1021 | OWASP:A06:2025 | | Cryptographic Issues | CWE-310 | None | | Unsafe JQuery Plugin | CWE-79, CWE-116 | CWE Top 25, OWASP:A05:2025 | | Cross-Site Request Forgery (CSRF) | CWE-352 | CWE Top 25, OWASP:A01:2025 | | Sensitive Cookie Without 'HttpOnly' Flag | CWE-1004 | OWASP:A02:2025 | | Sensitive Cookie in HTTPS Session Without 'Secure' Attribute | CWE-614 | OWASP:A02:2025 | | XML External Entity (XXE) Injection | CWE-611 | OWASP:A02:2025 | | XPath Injection | CWE-643 | OWASP:A05:2025 | | Arbitrary File Write via Archive Extraction (Zip Slip) | CWE-22 | CWE Top 25, OWASP:A01:2025 | | Regular Expression Denial of Service (ReDoS) | CWE-400 | OWASP-API:API4:2023 | --- # Agent Instructions This documentation is published with GitBook. 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