Bookwyrm v0.4.3 - Authentication Bypass

2022-09-2000:00:00

Akshay Ravi

www.exploit-db.com

bookwyrm

authentication bypass

email verification

account takeover

ratelimit protection

cve-2022-2651

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.7

Confidence

High

EPSS

0.119

Percentile

95.4%

JSON

# Exploit Title: Bookwyrm v0.4.3 - Authentication Bypass
# Date: 2022-08-4
# Exploit Author: Akshay Ravi
# Vendor Homepage: https://github.com/bookwyrm-social/bookwyrm
# Software Link: https://github.com/bookwyrm-social/bookwyrm/releases/tag/v0.4.3
# Version: <= 4.0.3
# Tested on: MacOS Monterey
# CVE: CVE-2022-2651
# Original Report Link: https://huntr.dev/bounties/428eee94-f1a0-45d0-9e25-318641115550/

Description: Email Verification Bypass Leads To Account Takeover in bookwyrm-social/bookwyrm v0.4.3 Due To Lack Of Ratelimit Protection

# Steps to reproduce:

1. Create a acount with victims email id
2. When the account is created, its ask for email confirmation via validating OTP	
Endpoint: https://site/confirm-email
3. Enter any random OTP and try to perfrom bruteforce attack and if otp matches, We can takeover that account