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CVE-2025-59038

Prebid.js NPM package briefly compromised

HIGH
8.6
CVSS Score
Published: September 9, 2025 at 10:17 PM UTC
Updated: June 17, 2026 at 09:45 AM UTC
1 product affected across 1 vendorPrebid.js

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Severity
HIGH8.6
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Prebid.js is a free and open source library for publishers to quickly implement header bidding. NPM users of prebid 10.9.2 may have been briefly compromised by a malware campaign. The malicious code attempts to redirect crypto transactions on the site to the attackers' wallet. Version 10.10.0 fixes the issue. As a workaround, it is also possible to downgrade to 10.9.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRM
Source: [email protected]
https://github.com/prebid/Prebid.js/security/advisories/GHSA-jwq7-6j4r-2f92
x_refsource_MISC
Source: [email protected]
https://www.sonatype.com/blog/npm-chalk-and-debug-packages-hit-in-software-supply-chain-attack

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-506

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