Common Weakness Enumeration
CWE-863
Allowed-with-ReviewIncorrect Authorization
Abstraction: Class · Status: Incomplete
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
5612 vulnerabilities reference this CWE, most recent first.
CVE-2023-4317 (GCVE-0-2023-4317)
Vulnerability from cvelistv5 – Published: 2023-12-01 07:02 – Updated: 2025-11-20 04:09
VLAI
EPSS
VEX
Title
Incorrect Authorization in GitLab
Summary
An issue has been discovered in GitLab affecting all versions starting from 9.2 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for a user with the Developer role to update a pipeline schedule from an unprotected branch to a protected branch.
Severity
4.3 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/421846 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2089517 | technical-descriptionexploitpermissions-required |
Impacted products
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CVE-2023-4107 (GCVE-0-2023-4107)
Vulnerability from cvelistv5 – Published: 2023-08-11 06:12 – Updated: 2024-10-11 16:52
VLAI
EPSS
VEX
Title
Incorrect authorization allows a user manager to update a system admin
Summary
Mattermost fails to properly validate the requesting user permissions when updating a system admin, allowing a user manager to update a system admin's details such as email, first name and last name.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
0 , ≤ 7.8.7
(semver)
Affected: 0 , ≤ 7.9.5 (semver) Affected: 0 , ≤ 7.10.3 (semver) Unaffected: 7.8.8 Unaffected: 7.9.6 Unaffected: 7.10.4 |
|
| mattermost | mattermost |
Affected:
7.8.0 , < 7.8.8
(custom)
Affected: 7.9.0 , < 7.9.6 (custom) Affected: 7.10.0 , < 7.10.4 (custom) cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* |
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CVE-2023-3979 (GCVE-0-2023-3979)
Vulnerability from cvelistv5 – Published: 2023-09-29 06:02 – Updated: 2026-05-08 04:06
VLAI
EPSS
VEX
Title
Incorrect Authorization in GitLab
Summary
An issue has been discovered in GitLab affecting all versions starting from 10.6 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that upstream members to collaborate with you on your branch get permission to write to the merge request’s source branch.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/419972 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2082560 | technical-descriptionexploitpermissions-required |
Impacted products
Credits
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CVE-2023-3964 (GCVE-0-2023-3964)
Vulnerability from cvelistv5 – Published: 2023-12-01 07:02 – Updated: 2026-05-06 04:05
VLAI
EPSS
VEX
Title
Incorrect Authorization in GitLab
Summary
An issue has been discovered in GitLab affecting all versions starting from 13.2 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for users to access composer packages on public projects that have package registry disabled in the project settings.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/419857 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2037316 | technical-descriptionexploitpermissions-required |
Impacted products
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CVE-2023-3920 (GCVE-0-2023-3920)
Vulnerability from cvelistv5 – Published: 2023-09-29 06:02 – Updated: 2026-04-25 04:05
VLAI
EPSS
VEX
Title
Incorrect Authorization in GitLab
Summary
An issue has been discovered in GitLab affecting all versions starting from 11.2 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible that a maintainer to create a fork relationship between existing projects contrary to the documentation.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/417481 | issue-trackingpermissions-required |
| https://hackerone.com/reports/2058121 | technical-descriptionexploitpermissions-required |
Impacted products
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CVE-2023-3613 (GCVE-0-2023-3613)
Vulnerability from cvelistv5 – Published: 2023-07-17 15:31 – Updated: 2024-10-21 19:39
VLAI
EPSS
VEX
Title
Guest accounts invited and added to channels by Welcomebot plugin
Summary
Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost Plugins |
Affected:
0 , ≤ 7.8.5
(semver)
Affected: 0 , ≤ 7.10.2 (semver) Unaffected: 7.8.6 Unaffected: 7.10.3 |
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CVE-2023-3590 (GCVE-0-2023-3590)
Vulnerability from cvelistv5 – Published: 2023-07-17 15:28 – Updated: 2024-10-21 19:43
VLAI
EPSS
VEX
Title
Deleted attachments in Boards remain accessible
Summary
Mattermost fails to delete card attachments in Boards, allowing an attacker to access deleted attachments.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
0 , ≤ 7.10.2
(semver)
Unaffected: 7.10.3 |
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CVE-2023-3586 (GCVE-0-2023-3586)
Vulnerability from cvelistv5 – Published: 2023-07-17 15:25 – Updated: 2024-10-22 13:40
VLAI
EPSS
VEX
Title
Disabling publicly-shared boards does not disable existing publicly available board links
Summary
Mattermost fails to disable public Boards after the "Enable Publicly-Shared Boards" configuration option is disabled, resulting in previously-shared public Boards to remain accessible.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
0 , ≤ 7.8.6
(semver)
Affected: 0 , ≤ 7.9.4 (semver) Affected: 0 , ≤ 7.10.2 (semver) Unaffected: 7.8.7 Unaffected: 7.9.5 Unaffected: 7.10.3 |
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CVE-2023-3584 (GCVE-0-2023-3584)
Vulnerability from cvelistv5 – Published: 2023-07-17 15:23 – Updated: 2024-10-21 19:50
VLAI
EPSS
VEX
Title
Member can create team with team override scheme
Summary
Mattermost fails to properly check the authorization of POST /api/v4/teams when passing a team override scheme ID in the request, allowing an authenticated attacker with knowledge of a Team Override Scheme ID to create a new team with said team override scheme.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
0 , ≤ 7.8.4
(semver)
Affected: 0 , ≤ 7.10.2 (semver) Unaffected: 7.10.3 Unaffected: 7.8.5 |
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CVE-2023-3582 (GCVE-0-2023-3582)
Vulnerability from cvelistv5 – Published: 2023-07-17 15:21 – Updated: 2024-10-21 19:59
VLAI
EPSS
VEX
Title
Lack of channel membership check when linking a board to a channel
Summary
Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to,
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
0 , ≤ 7.8.6
(semver)
Affected: 0 , ≤ 7.9.4 (semver) Affected: 0 , ≤ 7.10.2 (semver) Unaffected: 7.10.3 Unaffected: 7.9.5 Unaffected: 7.8.7 |
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Mitigation
Architecture and Design
- Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
- Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
Mitigation MIT-4.4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
- For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
- One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration
Installation
Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
No CAPEC attack patterns related to this CWE.