XSSassin
XSSassin is a Firefox browser extension that injects security-testing payloads into text fields, textareas, and contenteditable elements. It provides built-in payloads for XSS, SQL injection, HTML injection, and other vulnerability classes, along with support for custom payloads.
Overview
12 featuresXSSassin sits in PulseGate's Penetration testing & red teaming category. It focuses on testing web applications for injection vulnerabilities without manually entering security payloads. It is built as a B2B product for penetration testers, bug bounty hunters, and security-conscious developers. XSSassin costs nothing to use. It ships for the web, embeddable surfaces, and Android.
yesmayank builds and maintains XSSassin, and it first shipped in 2026. Key capabilities include one-click injection, payload library, and custom payloads. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
- One-click injection
- Payload library
- Custom payloads
- XSS testing
- SQLi testing
- HTML injection
- NoSQL injection
- LDAP injection
- Command injection
- XPath injection
- SSTI testing
- CRLF testing
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
- Indexed14 Sep · 18:34 UTCXSSassin - Payload Injector verified via Firefox Add-onsSource: Firefox Add-ons · Open
Frequently asked questions about XSSassin
- What is XSSassin?
- XSSassin focuses on testing web applications for injection vulnerabilities without manually entering security payloads. It is catalogued under Penetration testing & red teaming on PulseGate.
- Who is XSSassin for?
- XSSassin is a B2B product built for penetration testers, bug bounty hunters, and security-conscious developers.
- Does XSSassin have a free plan?
- Yes — XSSassin is free to use.
- What platforms does XSSassin run on?
- XSSassin runs on the web, embeddable surfaces, and Android.
- Is XSSassin still maintained?
- Unverified. XSSassin has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
- What are alternatives to XSSassin?
- Similar projects tracked by PulseGate include XSSpect, Check XSS, and KNOXSS.XSSpectCheck XSSKNOXSS
- Who develops XSSassin?
- XSSassin is developed by yesmayank.
- When did XSSassin launch?
- XSSassin first shipped in 2026.
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