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.

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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
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