CVE-2021-47721CWE-639

Orangescrum 1.8.0 Authenticated Privilege Escalation via User Session Manipulation

High · published December 23, 2025

CVSS v4.0
8.7
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

⚡ A crafty privilege escalation flaw in Orangescrum 1.8.0 allows users to hijack other accounts with a few sneaky cookie tricks! 🍪🔍 Think of it like a party where someone finds your name tag and swaps it out for their own—suddenly, they can claim your drinks, dance with your friends, and access your secret stash! This vulnerability is particularly alarming because an attacker could easily take control of another user's account, gaining access to sensitive project details, files, or even the ability to manipulate crucial project settings. In a collaborative environment, this could lead to chaos and data breaches, leaving your team and organization vulnerable.

Put simply

Think of it like a party where someone finds your name tag and swaps it out for their own—suddenly, they can claim your drinks, dance with your friends, and access your secret stash! CVE-2021-47721 allows authenticated users to manipulate session cookies. By extracting a target user's unique ID from the page source, the attacker can replace their own session cookie, effectively impersonating the victim and accessing their account without authorization.

What to do

This vulnerability is particularly alarming because an attacker could easily take control of another user's account, gaining access to sensitive project details, files, or even the ability to manipulate crucial project settings. In a collaborative environment, this could lead to chaos and data breaches, leaving your team and organization vulnerable. To protect against this vulnerability, immediately update to the latest version of Orangescrum. You should also implement strict session management practices and ensure cookie attributes are properly configured to prevent tampering, such as using the HttpOnly and Secure flags. Audit user permissions regularly to limit the risk of abuse. You've got this! By taking these steps, you’ll keep your project environment secure and maintain your hero status! 🛡️💪

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00457 · 38.6th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2025-12-23T19:34Z
EPSS history
Timeline
  • 23 DEC 19:34Z
    Orangescrum 1.8.0 Authenticated Privilege Escalation via User Session Manipulation
    cvelistv5