Handlebars.js has JavaScript Injection in CLI Precompiler via Unescaped Names and Options

Summary The Handlebars CLI precompiler bin/handlebars / lib/precompiler.js concatenates user-controlled strings — template file names and several CLI options — directly into the JavaScript it emits, without any escaping or sanitization. An attacker who can influence template filenames or CLI...

EUVD-2026-16860

Handlebars.js has JavaScript Injection via AST Type Confusion when passing an object as dynamic partial...

Handlebars.js has JavaScript Injection via AST Type Confusion by tampering @partial-block

Summary The @partial-block special variable is stored in the template data context and is reachable and mutable from within a template via helpers that accept arbitrary objects. When a helper overwrites @partial-block with a crafted Handlebars AST, a subsequent invocation of @partial-block compil...

GHSA-3MFM-83XF-C92R Handlebars.js has JavaScript Injection via AST Type Confusion by tampering @partial-block

Summary The @partial-block special variable is stored in the template data context and is reachable and mutable from within a template via helpers that accept arbitrary objects. When a helper overwrites @partial-block with a crafted Handlebars AST, a subsequent invocation of @partial-block compil...

EUVD-2026-16849

Handlebars.js has JavaScript Injection via AST Type Confusion by tampering @partial-block...

GHSA-2W6W-674Q-4C4Q Handlebars.js has JavaScript Injection via AST Type Confusion

Summary Handlebars.compile accepts a pre-parsed AST object in addition to a template string. The value field of a NumberLiteral AST node is emitted directly into the generated JavaScript without quoting or sanitization. An attacker who can supply a crafted AST to compile can therefore inject and...

Handlebars.js has JavaScript Injection via AST Type Confusion

Summary Handlebars.compile accepts a pre-parsed AST object in addition to a template string. The value field of a NumberLiteral AST node is emitted directly into the generated JavaScript without quoting or sanitization. An attacker who can supply a crafted AST to compile can therefore inject and...

EUVD-2026-16848

Handlebars.js has JavaScript Injection via AST Type Confusion...

CVE-2026-34375

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the YPTWallet Stripe payment confirmation page directly echoes the "$REQUEST'plugin'" parameter into a JavaScript block without any encoding or sanitization. The "plugin" parameter is not included in any of the...

CVE-2021-27308

A cross-site scripting XSS vulnerability in the admin login panel in 4images version 1.8 allows remote attackers to inject JavaScript via the "redirect" parameter...

CVE-2021-27520

A cross-site scripting XSS issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "author" parameter...

CVE-2021-27519

A cross-site scripting XSS issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript via index.php in the "srch" parameter...

CVE-2021-27526

A cross-site scripting XSS vulnerability in DynPG version 4.9.2 allows remote attackers to inject JavaScript via the "page" parameter...

CVE-2021-27528

A cross-site scripting XSS vulnerability in DynPG version 4.9.2 allows remote attackers to inject JavaScript via the "refID" parameter...

CVE-2026-33941: Improper Neutralization of Input During Web Page Generation

Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through 4.7.8, the Handlebars CLI precompiler bin/handlebars / lib/precompiler.js concatenates user-controlled strings — template file names and several CLI options — directly into the JavaScript it...

PT-2026-30771

Impact An authenticated user with permission to create or modify workflows could inject malicious JavaScript into the Custom CSS field of the Chat Trigger node. Due to a misconfiguration in the sanitize-html library, the sanitization could be bypassed, resulting in stored XSS on the public chat...

CVE-2026-33937: Access of Resource Using Incompatible Type

Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through 4.7.8, Handlebars.compile accepts a pre-parsed AST object in addition to a template string. The value field of a NumberLiteral AST node is emitted directly into the generated JavaScript withou...

WindMill code injection vulnerability

WindMill is a free open-source tool developed by Lukasavicus’ individual developer. It is used to control the execution of tasks in Python. Versions of WindMill prior to 1.664.0 contained a code injection vulnerability. This vulnerability occurred when JavaScript string literals were inserted int...

CVE-2026-33525

Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on SSO for applications via a web portal. In version 4.39.15, an attacker may potentially be able to inject javascript into the Authelia login page if several conditions are met...

CVE-2026-33525 Authelia: Improper Neutralization of Input During Web Page Generation Leads to Potential Cross-site Scripting

Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on SSO for applications via a web portal. In version 4.39.15, an attacker may potentially be able to inject javascript into the Authelia login page if several conditions are met...