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CVE Record

CVE-2021-47721: Orangescrum 1.8.0 Authenticated Privilege Escalation via User Session Manipulation

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.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Orangescrum 1.8.0 reportedly lets a logged-in user access another project user’s account by abusing weak session/user authorization handling. This could expose project data and allow unauthorized changes under another identity. The issue is high severity, but the provided sources do not show confirmed active exploitation or a named vendor fix.

Executive priority

Treat as a high-priority application risk if Orangescrum 1.8.0 is deployed. Prioritize verification, access restriction, and vendor update review because compromise requires only an authenticated account, not administrative privileges.

Technical view

CVE-2021-47721 affects Orangescrum 1.8.0 and is categorized as CWE-639, authorization bypass through user-controlled key. An authenticated attacker may impersonate other project-assigned accounts through session/user identifier manipulation. CVSS is 8.8, with network access, low complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Organizations running Orangescrum 1.8.0 are the known exposed group. Risk is higher where untrusted users, contractors, or broad internal audiences have application accounts and project access.

Exploitation context

A public ExploitDB reference exists, indicating exploit information is publicly available. The source bundle does not identify CISA KEV listing or confirmed active exploitation in the wild.

Researcher notes

Evidence comes from CVE/VulnCheck data and a public ExploitDB reference. The provided sources identify Orangescrum 1.8.0 only. No official patch version, workaround, or active exploitation confirmation is included in the bundle.

Mitigation direction

  • Check Orangescrum vendor guidance for a fixed release or official workaround.
  • Inventory Orangescrum deployments and identify any running version 1.8.0.
  • Restrict Orangescrum access to trusted networks or VPN where feasible.
  • Limit project membership and remove unnecessary user accounts.
  • Review logs for unusual account switching or access to other users’ project data.

Validation and detection

  • Confirm the installed Orangescrum version across production and test systems.
  • Review whether users can access only their authorized project accounts.
  • Check session management and authorization controls against vendor guidance.
  • Look for unexpected activity performed under legitimate user accounts.
  • Monitor public vendor and advisory sources for patch information.
Prepared
Confidence
medium
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-639: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-47721 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2021-47721Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Orangescrumorangescrum1.8.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-639 · source CWE mapping

Authorization Bypass Through User-Controlled Key

Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.