CVE-2026-53722Network attack vector

Reflected XSS via unvalidated anchor URL schemes

Published Jun 12, 2026 · Updated Jun 12, 2026

Cross-site scripting in Nuxt 3.0.0 through 3.21.6 and 4.0.0 through 4.4.6 allows remote attackers to execute script via crafted NuxtLink URLs. NuxtLink treats any value with a recognized protocol as external, then writes its to or href prop directly to an anchor href without rejecting script-capable schemes. Exploitation requires an application to bind attacker-controlled input to the component and a user to click the rendered link, which runs script in the application origin.

CVSS severity5.1
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Nuxt 3.0.0 through 3.21.6 and 4.0.0 through 4.4.6 allows remote attackers to execute script via crafted NuxtLink URLs. NuxtLink treats any value with a recognized protocol as external, then writes its to or href prop directly to an anchor href without rejecting script-capable schemes. Exploitation requires an application to bind attacker-controlled input to the component and a user to click the rendered link, which runs script in the application origin.

The record

CVE
CVE-2026-53722
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
Nuxt
Product
Nuxt
Classifications
CWE-79, CWE-83, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.21.7
  2. Affected versionversion=>= 4.0.0, < 4.4.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Nuxt · Nuxtversion=< 3.21.7; version=>= 4.0.0, < 4.4.7

Published CVSS scores

5.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-83Improper Neutralization of Script in Attributes in a Web Page
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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