Asymmetric-effort vulnerabilities
Published CVEs affecting Asymmetric-effort products: 2 record(s), with severity, exploitation and fixes.
CVE-2026-50290
Medium · 5.3
CWE-79 Aug 21, 2026
@asymmetric-effort/specifyjs: CSS expression sanitization is bypassable in renderToString
SpecifyJS is a declarative TypeScript user interface framework. Prior to version 0.2.136, CSS value sanitization stripped `expression(` and `url(javascript:` using simple regex, but could be bypassed with CSS unicode escapes (`\65xpression(`), null bytes, or CSS comments (`exp/**/ression(`). These CSS injection vectors only work in legacy browsers (IE6-IE10). SpecifyJS targets modern browsers. Starting in version 0.2.136, CSS sanitization now normalizes unicode escapes and strips CSS comments before pattern matching. Also checks for `behavior:`, `-moz-binding`, and `-o-link` patterns.
CVE-2026-50288
High · 8.7
CWE-918 Aug 21, 2026
@asymmetric-effort/specifyjs: URL parse failure silently allows request
SpecifyJS is a declarative TypeScript user interface framework. Prior to version 0.2.136, when `new URL()` throws a parse error, the `assertSecureUrl` function returned without throwing, silently allowing the request to proceed without HTTPS validation. Starting in version 0.2.136, the catch block now throws an error instead of silently returning.