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.
5281 vulnerabilities reference this CWE, most recent first.
CVE-2026-77368 (GCVE-0-2026-77368)
Vulnerability from cvelistv5 – Published: 2026-08-26 21:07 – Updated: 2026-08-27 14:32
VLAI
EPSS
VEX
Title
SeaweedFS: Authenticated Cross-Prefix IDOR in Filer TUS Handler Enables Arbitrary Write to Tenant-Forbidden Paths
Summary
SeaweedFS is a distributed storage system for files and blobs. In version 4.39, the filer's TUS resumable-upload handler checks JWT allowed_prefixes scoping only when a session is created, letting a low-privilege tenant hijack another tenant's upload session to write content to filer paths their own token forbids. The HEAD, PATCH, and DELETE verbs that act on an existing session by its id never verify that the session's stored target path falls within the caller's allowed prefixes, so a tenant who obtains another upload's session identifier can PATCH attacker bytes into it and, on completion, have the file land at the victim's out-of-scope path. The same token can also DELETE other tenants' sessions and HEAD them to read upload progress and size, defeating the JWT prefix isolation. This vulnerability only affects deployments that configure filer JWT signing and have TUS uploads enabled. This issue is fixed in version 4.40.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 13:53 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/seaweedfs/seaweedfs/security/a… | x_refsource_CONFIRM |
| https://github.com/seaweedfs/seaweedfs/commit/ce8… | x_refsource_MISC |
| https://github.com/seaweedfs/seaweedfs/commit/fa5… | x_refsource_MISC |
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CVE-2026-77366 (GCVE-0-2026-77366)
Vulnerability from cvelistv5 – Published: 2026-10-12 17:54 – Updated: 2026-10-13 15:14
VLAI
EPSS
VEX
Title
obsidian-tc tokens can access arbitrary configured vaults
Summary
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, tool dispatch does not compare the caller-controlled input.vault value with the vault bound to the caller, the JSON Web Token (JWT) has no vault claim, and the folder access-control list is shared globally. Any valid token can therefore select another configured vault and read, write, or delete its contents through affected tools. Version 1.3.1 fixes the vulnerability by binding tokens and request context to a vault and rejecting mismatched input.vault values before scope checks.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:14 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/The-40-Thieves/obsidian-tc/sec… | x_refsource_CONFIRM |
| https://github.com/The-40-Thieves/obsidian-tc/pull/72 | x_refsource_MISC |
| https://github.com/The-40-Thieves/obsidian-tc/com… | x_refsource_MISC |
| https://github.com/The-40-Thieves/obsidian-tc/rel… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The-40-Thieves | obsidian-tc |
Affected:
< 1.3.1
|
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CVE-2026-77293 (GCVE-0-2026-77293)
Vulnerability from cvelistv5 – Published: 2026-09-24 18:08 – Updated: 2026-09-24 18:45
VLAI
EPSS
VEX
Title
TREK: Cross-user note-file deletion (IDOR / Broken Access Control)
Summary
TREK is a collaborative travel planner. Prior to 3.3.0, the DELETE /api/trips/:tripId/collab/notes/:noteId/files/:fileId endpoint authorizes an authenticated user against the attacker-controlled tripId but deleteNoteFile in server/src/services/collabService.ts resolves the target only by note and file identifiers without requiring the file to belong to that trip. A user with edit access to any trip can submit identifiers belonging to another user's trip and permanently delete that note-file attachment. Sequential identifiers make broad targeting practical, while attachment read operations remain trip-scoped and are not affected. This issue is fixed in version 3.3.0.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 18:44 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/liketrek/TREK/security/advisor… | x_refsource_CONFIRM |
| https://github.com/liketrek/TREK/pull/1520 | x_refsource_MISC |
| https://github.com/liketrek/TREK/commit/19064b391… | x_refsource_MISC |
| https://github.com/liketrek/TREK/releases/tag/v3.3.0 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mauriceboe | TREK |
Affected:
< 3.3.0
|
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CVE-2026-77240 (GCVE-0-2026-77240)
Vulnerability from cvelistv5 – Published: 2026-09-18 16:43 – Updated: 2026-09-23 19:04
VLAI
EPSS
VEX
Title
WACRM: Database-layer authorization bypasses
Summary
WACRM is a self-hostable CRM template for WhatsApp. In version 0.7.0 and earlier, the profiles_update row-level security policy in supabase/migrations/017_account_sharing.sql permits authenticated users to modify their own account_role and account_id, allowing a viewer to self-promote or move into another tenant and then access or modify tenant resources. Separately, match_ai_knowledge_fts and match_ai_knowledge_semantic in supabase/migrations/030_ai_knowledge.sql run as SECURITY DEFINER, accept a caller-controlled p_account_id, and omit an is_account_member check, allowing an authenticated non-member to read another tenant's knowledge-base chunks. This vulnerability is fixed with commit e01f7ed37184f972ace8fb2da5c3e37e56a6050f.
Severity
9.9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 19:04 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ArnasDon/wacrm/security/adviso… | x_refsource_CONFIRM |
| https://github.com/ArnasDon/wacrm/pull/350 | x_refsource_MISC |
| https://github.com/ArnasDon/wacrm/commit/e01f7ed3… | x_refsource_MISC |
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"url": "https://github.com/ArnasDon/wacrm/security/advisories/GHSA-fg5p-2qc3-jmxr"
},
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CVE-2026-77145 (GCVE-0-2026-77145)
Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-27 17:41
VLAI
EPSS
VEX
Title
Broken Access Control in extension "Events 2" (events2)
Summary
The permission check for the frontend management update flow verified a different event than the one the request went on to modify. A user with frontend event management access could therefore modify events belonging to other organizers.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:02 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "Events 2" |
Affected:
10.0.0 , < 10.2.12
(semver)
Affected: 9.0.0 , < 9.4.2 (semver) Affected: 0 , < 8.6.3 (semver) |
Date Public
2026-08-25 09:00
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CVE-2026-77143 (GCVE-0-2026-77143)
Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-26 06:02
VLAI
EPSS
VEX
Title
Broken Access Control in extension "Forum" (pforum)
Summary
The frontend topic editing flow does not verify on the server side that the requesting visitor owns the topic being modified. As a result, a visitor who knows the identifier of a topic from the public forum can submit a modified update request for that topic directly and overwrite its content, without the application confirming ownership. Topic identifiers are visible in the public forum listing, and exploitation requires no privileged access or non-default configuration.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:03 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "Forum" |
Affected:
6.0.0 , < 6.2.4
(semver)
Affected: 5.0.0 , < 5.0.1 (semver) Affected: 0 , < 4.0.4 (semver) |
Date Public
2026-08-25 09:00
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CVE-2026-77142 (GCVE-0-2026-77142)
Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-27 17:36
VLAI
EPSS
VEX
Title
Broken Access Control in extension "Industry Directory" (yellowpages2)
Summary
The frontend company self-service editing feature relies on a template-level visibility flag to hide the edit form for company records a visitor does not own, but the corresponding write operation does not repeat this ownership check on the server side. As a result, a visitor who knows the identifier of a company record from the public directory can submit a modified update request for that record directly and overwrite its data, without the application ever confirming that the visitor owns it.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:03 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "Industry Directory" |
Affected:
8.0.0 , < 8.1.2
(semver)
Affected: 7.0.0 , < 7.0.3 (semver) Affected: 0 , < 6.1.6 (semver) |
Date Public
2026-08-25 09:00
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CVE-2026-77141 (GCVE-0-2026-77141)
Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-27 17:35
VLAI
EPSS
VEX
Title
Broken Access Control in extension "Club Directory" (clubdirectory)
Summary
The extension resolves the targeted club record from a user-supplied request argument in its frontend edit, update, and activate actions, but performs no ownership check in any of them. An unauthenticated visitor who knows the UID of a club record can send a direct request to the update or activate action and overwrite that record, or publish one still awaiting approval, without owning it.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:37 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "Club Directory" |
Affected:
8.0.0 , < 8.1.3
(semver)
Affected: 7.0.0 , < 7.0.2 (semver) Affected: 0 , < 6.0.2 (semver) |
Date Public
2026-08-25 09:00
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CVE-2026-77140 (GCVE-0-2026-77140)
Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-27 17:33
VLAI
EPSS
VEX
Title
Broken Access Control in extension "Telephone Directory" (telephonedirectory)
Summary
The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:04 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "Telephone Directory" |
Affected:
6.0.0 , < 6.2.0
(semver)
Affected: 5.0.0 , < 5.0.1 (semver) Affected: 0 , < 4.1.1 (semver) |
Date Public
2026-08-25 09:00
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CVE-2026-77135 (GCVE-0-2026-77135)
Vulnerability from cvelistv5 – Published: 2026-08-25 09:00 – Updated: 2026-08-25 14:51
VLAI
EPSS
VEX
Title
Information Disclosure in extension "femanager" (femanager)
Summary
The extension's user detail view fails to verify that a requested user record matches the configured or logged-in target, allowing any visitor with access to the Detail or List plugin to retrieve another frontend user's profile data, including name, email, date of birth and address, by supplying an arbitrary user ID.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:42 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TYPO3 | Extension "femanager" |
Affected:
13.0.0 , < 13.3.5
(semver)
Affected: 8.0.0 , < 8.4.2 (semver) Affected: 7.0.0 , < 7.5.5 (semver) Affected: 0 , < 6.4.5 (semver) |
Date Public
2026-08-25 09:00
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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.