CVE-2025-59039 Prebid Universal Creative on npm briefly compromised
Attackers injected crypto malware into the Prebid Universal Creative npm package, allowing code execution in applications using the compromised version.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59039?
CVE-2025-59039 is a critical vulnerability in prebid-universal-creative, published on 9 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Prebid Universal Creative (PUC) is a JavaScript API to render multiple formats. Npm users of PUC 1.17.3 or PUC latest were briefly affected by crypto-related malware. This includes the extremely popular jsdelivr hosting of this file. The maintainers of PUC unpublished version 1.17.3. Users should see Prebid.js 9 release notes for suggestions on moving off the deprecated workflow of using the PUC or pointing to a dynamic version of it. PUC users pointing to latest should transition to 1.17.2 as soon as possible to avoid similar attacks in the future.
Weakness: CWE-506
Which versions are affected by CVE-2025-59039?
2 open source packages ship an affected version, including prebid-universal-creative.
| Package | Affected | Fixed in |
|---|---|---|
prebid-universal-creative npm | All versions | None |
prebid-universal-creative npm | All versions | None |
How do I fix CVE-2025-59039?
No fix has been published for CVE-2025-59039 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-59039 being exploited?
There is no known exploitation of CVE-2025-59039 in the wild and no public exploit code.
Sources
Also known as GHSA-m662-56rj-8fmm.