CVE-2025-59141Known exploitationPublic exploitNetwork attack vector

Transaction redirection via hooked browser APIs

Published Sep 15, 2025 · Updated Sep 16, 2025

Embedded malicious code in simple-swizzle 0.2.3 allows remote attackers to redirect browser cryptocurrency transactions. The injected index.js payload hooks fetch, XMLHttpRequest, and wallet APIs, then replaces transaction destinations and approval targets with attacker-controlled look-alike addresses. Exposure requires the compromised package to remain in a browser bundle; local, server, and command-line use does not execute the payload.

CVSS severityUnavailable
Unscored
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Embedded malicious code in simple-swizzle 0.2.3 allows remote attackers to redirect browser cryptocurrency transactions. The injected index.js payload hooks fetch, XMLHttpRequest, and wallet APIs, then replaces transaction destinations and approval targets with attacker-controlled look-alike addresses. Exposure requires the compromised package to remain in a browser bundle; local, server, and command-line use does not execute the payload.

The record

CVE
CVE-2025-59141
Published
Sep 15, 2025
Updated
Sep 16, 2025
Vendor
Qix-
Product
simple-swizzle
Classifications
CWE-506, T1195.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2025Exploitation reportedMalicious simple-swizzle npm publication
  2. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  3. Sep 16, 2025Record 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== 0.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qix- · simple-swizzleversion== 0.2.3

Published CVSS scores

8.8GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Red

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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-506Embedded Malicious Code
T1195.002Compromise Software Supply Chain

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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