CVE-2021-47721

HIGH 8.8

Orangescrum 1.8.0 Authenticated Privilege Escalation via User Session Manipulation

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

Orangescrum 1.8.0 contains a privilege escalation vulnerability that allows authenticated users to take over other project-assigned accounts by manipulating session cookies. Attackers can extract the victim's unique ID from the page source and replace their own session cookie to gain unauthorized access to another user's account.

CWE	CWE-639
Vendor	orangescrum
Product	orangescrum
Published	Dec 23, 2025
Last Updated	Mar 5, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Orangescrum / orangescrum

1.8.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/50551 orangescrum.org: https://www.orangescrum.org/ vulncheck.com: https://www.vulncheck.com/advisories/orangescrum-authenticated-privilege-escalation-via-user-session-manipulation

Credits

Hubert Wojciechowski