Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

3254 vulnerabilities reference this CWE, most recent first.

CVE-2025-65097 (GCVE-0-2025-65097)

Vulnerability from cvelistv5 – Published: 2025-12-03 19:41 – Updated: 2025-12-03 21:47
VLAI
Title
Insecure Direct Object Reference (IDOR) Allows Unauthorized Deletion of User Collections
Summary
RomM (ROM Manager) allows users to scan, enrich, browse and play their game collections with a clean and responsive interface. Prior to 4.4.1 and 4.4.1-beta.2, an Authenticated User can delete collections belonging to other users by directly sending a DELETE request to the collection endpoint. No ownership verification is performed before deleting collections. This vulnerability is fixed in 4.4.1 and 4.4.1-beta.2.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
rommapp romm Affected: < 4.4.1-beta.2
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CVE-2025-65096 (GCVE-0-2025-65096)

Vulnerability from cvelistv5 – Published: 2025-12-03 19:39 – Updated: 2025-12-03 21:47
VLAI
Title
RomM Insecure Direct Object Reference (IDOR) Allows Unauthorized Access to Private Collections
Summary
RomM (ROM Manager) allows users to scan, enrich, browse and play their game collections with a clean and responsive interface. Prior to 4.4.1 and 4.4.1-beta.2, users can read private collections / smart collections belonging to other users by directly accessing their IDs via API. No ownership verification or checking if the collection is public/private before returning collection data. This vulnerability is fixed in 4.4.1 and 4.4.1-beta.2.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
rommapp romm Affected: < 4.4.1-beta.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65034 (GCVE-0-2025-65034)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:26 – Updated: 2025-11-19 20:20
VLAI
Title
Rallly Improper Authorization Allows Reopening of Any Finalized Poll via Public pollId
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization vulnerability allows any authenticated user to reopen finalized polls belonging to other users by manipulating the pollId parameter. This can disrupt events managed by other users and compromise both availability and integrity of poll data. This issue has been patched in version 4.5.4.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65033 (GCVE-0-2025-65033)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:26 – Updated: 2025-11-19 20:03
VLAI
Title
Rallly Broken Authorization: Any User Can Pause or Resume Any Poll via Poll ID Manipulation
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the poll management feature allows any authenticated user to pause or resume any poll, regardless of ownership. The system only uses the public pollId to identify polls, and it does not verify whether the user performing the action is the poll owner. As a result, any user can disrupt polls created by others, leading to a loss of integrity and availability across the application. This issue has been patched in version 4.5.4.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65032 (GCVE-0-2025-65032)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:26 – Updated: 2025-11-19 18:50
VLAI
Title
Rallly Has an IDOR Vulnerability in Participant Rename Function Allows Unauthorized Modification of Other Users’ Names
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an Insecure Direct Object Reference (IDOR) vulnerability allows any authenticated user to change the display names of other participants in polls without being an admin or the poll owner. By manipulating the participantId parameter in a rename request, an attacker can modify another user’s name, violating data integrity and potentially causing confusion or impersonation attacks. This issue has been patched in version 4.5.4.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65031 (GCVE-0-2025-65031)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:25 – Updated: 2025-11-19 18:35
VLAI
Title
Rallly Improper Authorization in Comment Endpoint Allows User Impersonation
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization flaw in the comment creation endpoint allows authenticated users to impersonate any other user by altering the authorName field in the API request. This enables attackers to post comments under arbitrary usernames, including privileged ones such as administrators, potentially misleading other users and enabling phishing or social engineering attacks. This issue has been patched in version 4.5.4.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65030 (GCVE-0-2025-65030)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:25 – Updated: 2025-11-19 18:37
VLAI
Title
Rallly Improper Authorization in Comment Deletion Endpoint Allows Unauthorized Comment Removal
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the comment deletion API allows any authenticated user to delete comments belonging to other users, including poll owners and administrators. The endpoint relies solely on the comment ID for deletion and does not validate whether the requesting user owns the comment or has permission to remove it. This issue has been patched in version 4.5.4.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65029 (GCVE-0-2025-65029)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:24 – Updated: 2025-11-19 21:14
VLAI
Title
Rallly Has an IDOR Vulnerability in Participant Deletion Endpoint Allows Unauthorized Removal of Poll Participants
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows any authenticated user to delete arbitrary participants from polls without ownership verification. The endpoint relies solely on a participant ID to authorize deletions, enabling attackers to remove other users (including poll owners) from polls. This impacts the integrity and availability of poll participation data. This issue has been patched in version 4.5.4.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-65028 (GCVE-0-2025-65028)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:23 – Updated: 2025-11-19 21:11
VLAI
Title
Rallly Has an IDOR Vulnerability in Vote Update Endpoint Allows Unauthorized Manipulation of Participant Votes
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows any authenticated user to modify other participants’ votes in polls without authorization. The backend relies solely on the participantId parameter to identify which votes to update, without verifying ownership or poll permissions. This allows an attacker to alter poll results in their favor, directly compromising data integrity. This issue has been patched in version 4.5.4.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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              "type": "CWE"
            }
          ]
        },
        {
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CVE-2025-65021 (GCVE-0-2025-65021)

Vulnerability from cvelistv5 – Published: 2025-11-19 17:24 – Updated: 2025-11-19 21:13
VLAI
Title
Rallly Has Unauthorized Poll Finalization via Insecure Direct Object Reference (IDOR)
Summary
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an Insecure Direct Object Reference (IDOR) vulnerability exists in the poll finalization feature of the application. Any authenticated user can finalize a poll they do not own by manipulating the pollId parameter in the request. This allows unauthorized users to finalize other users’ polls and convert them into events without proper authorization checks, potentially disrupting user workflows and causing data integrity and availability issues. This issue has been patched in version 4.5.4.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-285 - Improper Authorization
  • CWE-862 - Missing Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
lukevella rallly Affected: < 4.5.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design

For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.

Mitigation
Architecture and Design Implementation

Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.

Mitigation
Architecture and Design

Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.

No CAPEC attack patterns related to this CWE.

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