How severe is CVE-2026-25148?

CVE-2026-25148 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-25148 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25148?

CVE-2026-25148 affects Qwik. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25148?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-25148 have an EU (EUVD) identifier?

Yes. CVE-2026-25148 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5166.

When was CVE-2026-25148 published?

CVE-2026-25148 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-25148

CVE-2026-25148 is a medium-severity vulnerability in Qwik with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.3
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5166
Weakness: CWE-79
Affected product: Qwik
Published: 2026-02-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-25148?: 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.
How severe is CVE-2026-25148?: CVE-2026-25148 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-25148 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25148?: CVE-2026-25148 affects Qwik. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25148?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-25148 have an EU (EUVD) identifier?: Yes. CVE-2026-25148 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5166.
When was CVE-2026-25148 published?: CVE-2026-25148 was published on 2026-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qwik:qwik:*:*:*:*:*:node.js:*:*

More vulnerabilities in Qwik

CVE-2023-1283 — Critical (CVSS 10.0): Code Injection in GitHub repository builderio/qwik prior to 0.21.0.
CVE-2026-27971 — Critical (CVSS 9.8): Qwik is a performance focused javascript framework. qwik <=1.19.0 is vulnerable to RCE due to an unsafe deserialization…
CVE-2026-25150 — Critical (CVSS 9.3): Qwik is a performance focused javascript framework. Prior to version 1.19.0, a prototype pollution vulnerability exists…
CVE-2026-32701 — High (CVSS 7.5): Qwik is a performance-focused JavaScript framework. Versions prior to 1.19.2 improperly inferred arrays from dotted…
CVE-2024-41677 — Medium (CVSS 6.3): Qwik is a performance focused javascript framework. A potential mutation XSS vulnerability exists in Qwik for versions…
CVE-2026-25149 — Medium (CVSS 6.1): Qwik is a performance focused javascript framework. Prior to version 1.19.0, an Open Redirect vulnerability in Qwik…

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