Common Weakness Enumeration
CWE-639
AllowedAuthorization Bypass Through User-Controlled Key
Abstraction: Base · Status: Incomplete
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.
5263 vulnerabilities reference this CWE, most recent first.
CVE-2026-86183 (GCVE-0-2026-86183)
Vulnerability from cvelistv5 – Published: 2026-09-06 09:00 – Updated: 2026-09-11 20:36
VLAI
EPSS
VEX
Title
diem-project diem dmWidget BasedmWidgetActions.class.php authorization
Summary
A vulnerability was identified in diem-project diem up to 5.1.3. This vulnerability affects unknown code of the file dmFrontPlugin/modules/dmWidget/lib/BasedmWidgetActions.class.php of the component dmWidget. Such manipulation of the argument widget_id leads to authorization bypass. The attack may be launched remotely. The exploit is publicly available and might be used. The name of the patch is 116974edfb9a5b8bd69cb13586dc62bcdbb485ad. A patch should be applied to remediate this issue. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 20:03 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/399315 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/399315/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-86183 | third-party-advisory |
| https://vuldb.com/submit/896155 | third-party-advisory |
| https://github.com/diem-project/diem/issues/450 | exploitissue-tracking |
| https://github.com/diem-project/diem/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| diem-project | diem |
Affected:
5.1.0
Affected: 5.1.1 Affected: 5.1.2 Affected: 5.1.3 cpe:2.3:a:diem-project:diem:*:*:*:*:*:*:*:* |
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CVE-2026-86176 (GCVE-0-2026-86176)
Vulnerability from cvelistv5 – Published: 2026-09-05 11:01 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
NetBox through 4.7.0 Information Disclosure via REST and GraphQL APIs
Summary
NetBox through 4.7.0 fails to properly scope user-private records in REST and GraphQL API endpoints for Notifications, Subscriptions, and Bookmarks. Authenticated users with view permissions can access all users' private records through unscoped querysets, disclosing which users watch or bookmark which objects.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 17:06 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/geo-chen/oss/blob/main/netbox.… | third-party-advisoryexploit |
| https://github.com/netbox-community/netbox/blob/v… | technical-description |
| https://github.com/netbox-community/netbox/blob/v… | technical-description |
| https://github.com/netbox-community/netbox | product |
| https://www.vulncheck.com/advisories/netbox-throu… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| netbox-community | netbox |
Affected:
0 , ≤ 4.7.0
(semver)
cpe:2.3:a:netbox:netbox:*:*:*:*:*:*:*:* |
Date Public
2026-09-05 00:00
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CVE-2026-86174 (GCVE-0-2026-86174)
Vulnerability from cvelistv5 – Published: 2026-09-05 11:01 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
Plane through 1.4.2 Arbitrary Comment Write via Public Deploy Board
Summary
Plane through 1.4.2 fails to validate that issues belong to the deploy board's project in the public comment endpoint. Authenticated attackers can post comments to arbitrary issues across workspaces by supplying an issue_id parameter to the public deploy-board comment endpoint.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:19 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/makeplane/plane/issues/9441 | issue-tracking |
| https://github.com/makeplane/plane/blob/v1.4.2/ap… | technical-description |
| https://github.com/makeplane/plane | product |
| https://www.vulncheck.com/advisories/plane-throug… | third-party-advisory |
Impacted products
Date Public
2026-07-19 00:00
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CVE-2026-86113 (GCVE-0-2026-86113)
Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
BookWyrm through 0.9.1 Insecure Direct Object Reference in edit-readthrough Allows Tampering with Other Users' Reading Records
Summary
BookWyrm through 0.9.1 contains an authorization bypass vulnerability in the edit_readthrough function that allows authenticated users to modify other users' reading records. Attackers can exploit sequential ReadThrough IDs to overwrite arbitrary users' start dates, finish dates, progress, and progress mode, affecting reading statistics and exported data.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 13:48 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/geo-chen/oss/blob/main/bookwyr… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm/blob/… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm | product |
| https://www.vulncheck.com/advisories/bookwyrm-thr… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| bookwyrm-social | bookwyrm |
Affected:
0 , ≤ 0.9.1
(semver)
cpe:2.3:a:joinbookwyrm:bookwyrm:*:*:*:*:*:*:*:* |
Date Public
2026-09-04 00:00
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CVE-2026-86112 (GCVE-0-2026-86112)
Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-24 14:20
VLAI
EPSS
VEX
Title
BookWyrm through 0.9.1 Missing Authorization on the Favorite and Unfavorite Endpoints
Summary
BookWyrm through 0.9.1 fails to validate user visibility permissions in the Favorite and Unfavorite views, allowing authenticated attackers to favorite or unfavorite followers-only and direct statuses they cannot access. Attackers can POST to the favorite endpoint with a status ID to create unauthorized interactions, trigger ActivityPub broadcasts, and enumerate private status IDs through response differentiation.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:19 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/geo-chen/oss/blob/main/bookwyr… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm/blob/… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm | product |
| https://www.vulncheck.com/advisories/bookwyrm-thr… | third-party-advisory |
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1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
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Date Public
2026-09-04 00:00
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CVE-2026-86111 (GCVE-0-2026-86111)
Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-24 14:20
VLAI
EPSS
VEX
Title
BookWyrm through 0.9.1 Insecure Direct Object Reference in EditStatus Exposes Followers-Only and Direct Statuses
Summary
BookWyrm through 0.9.1 fails to validate user visibility permissions in the status edit endpoint, allowing authenticated attackers to read followers-only and direct-message reviews by enumerating sequential status IDs. Attackers can access the raw content of restricted statuses through the edit view, bypassing the privacy protections documented for these message types.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:07 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/geo-chen/oss/blob/main/bookwyr… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm/blob/… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm/blob/… | technical-description |
| https://github.com/bookwyrm-social/bookwyrm | product |
| https://www.vulncheck.com/advisories/bookwyrm-thr… | third-party-advisory |
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1 product
| Vendor | Product | Version | |
|---|---|---|---|
| bookwyrm-social | bookwyrm |
Affected:
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CVE-2026-85873 (GCVE-0-2026-85873)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-22 21:54
VLAI
EPSS
VEX
Title
Skype for Business Elevation of Privilege Vulnerability
Summary
Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:05 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Skype for Business Server 2015 CU13 |
Affected:
9319.0 , < 6.0.9319.886
(custom)
|
|
| Microsoft | Skype for Business Server 2019 CU8 |
Affected:
2046.0 , < 7.0.2046.583
(custom)
|
|
| Microsoft | Skype for Business Server Subscription Edition CU1 |
Affected:
2046.0 , < 7.0.2046.889
(custom)
|
Date Public
2026-10-13 14:00
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CVE-2026-85693 (GCVE-0-2026-85693)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-09-14 19:33
VLAI
EPSS
VEX
Title
Chatbot UI Cross-User Private File Content Disclosure via Retrieval API
Summary
Chatbot UI contains an authorization bypass vulnerability in the retrieval endpoint that allows authenticated attackers to access private file content belonging to other users by supplying arbitrary file UUIDs. The endpoint uses a service-role Supabase client that bypasses row-level security and fails to validate file ownership, enabling attackers to retrieve indexed content chunks from victim files through crafted POST requests.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 19:20 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/mckaywrigley/chatbot-ui/issues/2028 | issue-tracking |
| https://github.com/mckaywrigley/chatbot-ui | product |
| https://github.com/mckaywrigley/chatbot-ui/blob/8… | technical-description |
| https://www.vulncheck.com/advisories/chatbot-ui-c… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mckaywrigley | chatbot-ui |
Affected:
0 , ≤ 81328b61d2a4ab597a7a057be70e785cf756d9f8
(git)
|
Date Public
2026-06-12 00:00
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CVE-2026-85638 (GCVE-0-2026-85638)
Vulnerability from cvelistv5 – Published: 2026-09-04 18:45 – Updated: 2026-09-11 20:37
VLAI
EPSS
VEX
Title
jofpin trape user.py authorization
Summary
A weakness has been identified in jofpin trape 2.0. This affects an unknown part of the file core/user.py. This manipulation of the argument vId/id causes authorization bypass. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 20:03 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/398786 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/398786/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-85638 | third-party-advisory |
| https://vuldb.com/submit/895139 | third-party-advisory |
| https://github.com/jofpin/trape/issues/407 | exploitissue-tracking |
| https://github.com/jofpin/trape/ | product |
Impacted products
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CVE-2026-85624 (GCVE-0-2026-85624)
Vulnerability from cvelistv5 – Published: 2026-09-04 14:32 – Updated: 2026-09-04 17:55
VLAI
EPSS
VEX
Title
Blinko 1.8.7 Cross-User Private Note Disclosure via noteReferenceList
Summary
Blinko 1.8.7 contains a cross-user private note disclosure vulnerability in the noteReferenceList procedure that performs no ownership verification on supplied note identifiers. Authenticated attackers can enumerate sequential note IDs and retrieve complete content of other users' private notes including attachments and tags.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:54 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/blinkospace/blinko/issues/1217 | issue-tracking |
| https://github.com/blinkospace/blinko | product |
| https://github.com/blinkospace/blinko/blob/1.8.8/… | technical-description |
| https://www.vulncheck.com/advisories/blinko-1.8.7… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| blinkospace | blinko |
Affected:
0 , ≤ 1.8.8
(custom)
cpe:2.3:a:blinko:blinko:*:*:*:*:*:*:*:* |
Date Public
2026-07-06 00:00
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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.