What is the CVSS score of CVE-2026-25148?

CVE-2026-25148 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Qwik are affected by CVE-2026-25148?

Organizations using Qwik should be aware of moderate risk from CVE-2026-25148, a cross-site scripting vulnerability rated CVSS 6.1.. A patch is available.

How to fix or mitigate CVE-2026-25148?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Qwik CVE-2026-25148

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-03 security-advisories@github.com

GHSA-m6jq-g7gq-5w3c

XSS Qwik

6.1

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

Patch released

Feb 10, 2026 - 20:12 nvd

Patch available

CVE Published

Feb 03, 2026 - 22:16 nvd

MEDIUM 6.1

DescriptionGitHub Advisory

Qwik is a performance focused javascript framework. Prior to version 1.19.0, a Cross-Site Scripting vulnerability in Qwik.js' server-side rendering virtual attribute serialization allows a remote attacker to inject arbitrary web scripts into server-rendered pages via virtual attributes. Successful exploitation permits script execution in a victim's browser in the context of the affected origin. This issue has been patched in version 1.19.0.

AnalysisAI

Improper serialization of virtual attributes in Qwik versions prior to 1.19.0 enables stored cross-site scripting attacks during server-side rendering, allowing attackers to inject malicious scripts that execute in users' browsers within the affected application context. The vulnerability requires user interaction and affects applications using vulnerable Qwik versions. A patch is available in version 1.19.0 and later.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Qwik. Qwik is a performance focused javascript framework. Prior to version 1.19.0, a Cross-Site Scripting vulnerability in Qwik.js' server-side rendering virtual attribute serialization allows a remote attacker to inject arbitrary web scripts into server-rendered pages via virtual attributes. Successful exploitation permits script execution in a victim's browser in the context of the affected origin. This issue has been patched in version 1.19.0.

RemediationAI

A vendor patch is available — apply it immediately. Fixed in version 1.19.0.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.