Authenticated Privilege Escalation in Orangescrum by Orangescrum Team
CVE-2021-47721

8.7HIGH

Key Information:

Vendor

Orangescrum

Status
Orangescrum
Vendor
CVE Published:
23 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47721?

Orangescrum 1.8.0 is susceptible to a privilege escalation flaw that enables authenticated users to usurp control of project-assigned accounts. This vulnerability occurs when an attacker can manipulate session cookies to gain unauthorized access by extracting a victim's unique user ID from the source code of a page. By substituting their own session cookie with that of the victim, attackers can effectively hijack the victim’s account, leading to serious security breaches.

Affected Version(s)

orangescrum 1.8.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47721 - Proof of Concept

References

https://www.exploit-db.com/exploits/50551
exploit
https://www.orangescrum.org/
product
https://www.vulncheck.com/advisories/orangescrum-authenti...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hubert Wojciechowski
JSON
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CVE-2021-47721 : Authenticated Privilege Escalation in Orangescrum by Orangescrum Team