Vulnerability · Published Aug 6, 2024 · Assigned by GitHub_M

CVE-2024-41677Cross-site Scripting (XSS) vulnerability due to improper HTML escaping in qwik

Medium 6.3

In plain English

A medium-severity cross-site scripting in qwik from QwikDev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.5%top 57.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Qwik is a performance focused javascript framework. A potential mutation XSS vulnerability exists in Qwik for versions up to but not including 1.6.0. Qwik improperly escapes HTML on server-side rendering. It converts strings according to the rules found in the `render-ssr.ts` file. It sometimes causes the situation that the final DOM tree rendered on browsers is different from what Qwik expects on server-side rendering. This may be leveraged to perform XSS attacks, and a type of the XSS is known as mXSS (mutation XSS). This has been resolved in qwik version 1.6.0 and @builder.io/qwik version 1.7.3. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@builder.io/qwik	1.7.3	GHSA-2rwj-7xq8-4gx4

Affected products (as reported)

Vendor	Product	Versions
QwikDev	qwik	@builder.io/qwik: < 1.7.3qwik: < 1.6.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

References

https://github.com/QwikDev/qwik/security/advisories/GHSA-2rwj-7xq8-4gx4 x_refsource_CONFIRM
https://github.com/QwikDev/qwik/commit/7e742eb3a1001542d795776c0317d47df8b9d64e x_refsource_MISC
https://github.com/QwikDev/qwik/blob/v1.5.5/packages/qwik/src/core/render/ssr/render-ssr.ts#L1182-L1208 x_refsource_MISC