---
id: CVE-2021-29023
title: >-
  InvoicePlane 1.5.11 doesn't have any rate-limiting for password reset and the
  reset token is generated using a weak mechanism that is predictable.
summary: >-
  InvoicePlane 1.5.11 doesn't have any rate-limiting for password reset and the
  reset token is generated using a weak mechanism that is predictable.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-307
vendor: invoiceplane
product: invoiceplane
affected:
  - invoiceplane = 1.5.11
published: '2021-05-17'
updated: '2026-07-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-29023'
references:
  - url: 'https://github.com/InvoicePlane/InvoicePlane/pull/767'
    label: cve@mitre.org
  - url: >-
      https://notnnor.github.io/research/2021/03/16/weak-password-recovery-mechanism-in-invoiceplane.html
    label: cve@mitre.org
  - url: >-
      https://seran.github.io/research/2021/03/16/weak-password-recovery-mechanism-in-invoiceplane.html
    label: cve@mitre.org
  - url: 'https://github.com/InvoicePlane/InvoicePlane/pull/767'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://notnnor.github.io/research/2021/03/16/weak-password-recovery-mechanism-in-invoiceplane.html
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01152
epssPercentile: 0.65547
ingestedAt: '2026-07-29T17:48:48.505Z'
---

## Overview

InvoicePlane 1.5.11 doesn't have any rate-limiting for password reset and the reset token is generated using a weak mechanism that is predictable.

## Affected

- `invoiceplane = 1.5.11`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.