What’s Vulnerable › Vulnerabilities

CVE-2020-15130: False-positive validity for NFT1 genesis transactions in SLPJS

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-07-30 · updated 2026-06-17
• Weakness: CWE-697

Description

In SLPJS (npm package slpjs) before version 0.27.4, there is a vulnerability to false-positive validation outcomes for the NFT1 Child Genesis transaction type. A poorly implemented SLP wallet or opportunistic attacker could create a seemingly valid NFT1 child token without burning any of the NFT1 Group token type as is required by the NFT1 specification. This is fixed in version 0.27.4.

Affected products

• simpleledger slpjs: before 0.27.4 — fixed in 0.27.4

How to fix

Upgrade to a fixed version: simpleledger slpjs 0.27.4. Check the vendor advisory for mitigations.

References

• https://github.com/simpleledger/slpjs/commit/290c20e8bff13ac81459d43e54cac232b5e3456c
• https://github.com/simpleledger/slpjs/security/advisories/GHSA-cc2p-4jhr-xhhx
• https://github.com/simpleledger/slpjs/commit/290c20e8bff13ac81459d43e54cac232b5e3456c
• https://github.com/simpleledger/slpjs/security/advisories/GHSA-cc2p-4jhr-xhhx

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