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.
3252 vulnerabilities reference this CWE, most recent first.
CVE-2026-8839 (GCVE-0-2026-8839)
Vulnerability from cvelistv5 – Published: 2026-06-06 03:28 – Updated: 2026-06-06 11:42
VLAI
EPSS
VEX
Title
MapPress Maps for WordPress <= 2.96.6 - Unauthenticated Insecure Direct Object Reference via REST API Endpoints
Summary
The MapPress Maps for WordPress plugin for WordPress is vulnerable to Authorization Bypass Through User-Controlled Key in all versions up to, and including, 2.96.6. This is due to missing ownership verification in the REST API routes registered via `Mappress_Api::rest_api_init()`, where the GET `/wp-json/mapp/v1/maps/{mapid}` endpoint uses `'permission_callback' => '__return_true'` and the write endpoints (POST update, DELETE, PATCH mutate, POST clone, POST empty_trash) only check the generic `edit_posts` capability without confirming that the requester owns the targeted map — a gap that is not compensated at the model layer, as `Mappress_Map::get()`, `save()`, `delete()`, `mutate()`, and `empty_trash()` all operate on any caller-supplied map ID without an ownership check. This makes it possible for unauthenticated attackers to read sensitive map data — including POI titles, addresses, coordinates, and body content — for any map on the site by enumerating map IDs, and for authenticated attackers with Contributor-level access and above to modify, delete, trash/restore, or clone any map regardless of its author.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
24 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| chrisvrichardson | MapPress Maps for WordPress |
Affected:
0 , ≤ 2.96.6
(semver)
|
Credits
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CVE-2026-8828 (GCVE-0-2026-8828)
Vulnerability from cvelistv5 – Published: 2026-06-12 14:50 – Updated: 2026-06-12 16:00
VLAI
EPSS
VEX
Summary
A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
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CVE-2026-8786 (GCVE-0-2026-8786)
Vulnerability from cvelistv5 – Published: 2026-05-18 03:00 – Updated: 2026-05-18 14:28
VLAI
EPSS
VEX
Title
Tencent WeKnora Config API Endpoint initialization.go getKnowledgeBaseForInitialization authorization
Summary
A vulnerability has been found in Tencent WeKnora up to 0.3.6. Affected by this issue is the function getKnowledgeBaseForInitialization of the file internal/handler/initialization.go of the component Config API Endpoint. The manipulation of the argument kbId leads to authorization bypass. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/364410 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/364410/cti | signaturepermissions-required |
| https://vuldb.com/submit/812172 | third-party-advisory |
| https://gist.github.com/YLChen-007/1cdc50418f29af… | exploit |
Impacted products
Credits
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CVE-2026-8679 (GCVE-0-2026-8679)
Vulnerability from cvelistv5 – Published: 2026-05-22 07:50 – Updated: 2026-05-22 10:20
VLAI
EPSS
VEX
Title
AudioIgniter Music Player <= 2.0.2 - Unauthenticated Insecure Direct Object Reference to 'audioigniter_playlist_id' Parameter
Summary
The AudioIgniter plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 2.0.2. This is due to the handle_playlist_endpoint() function (hooked to template_redirect) accepting a user-controlled playlist ID via the audioigniter_playlist_id query var or the /audioigniter/playlist/{id}/ rewrite rule and returning playlist track data without performing any authentication, capability, or post_status check — only the post_type is validated. This makes it possible for unauthenticated attackers to view track metadata (titles, artists, audio URLs, buy links, download URLs, and cover images) of any playlist on the site, including those in draft, private, pending, or trash status.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cssigniterteam | AudioIgniter Music Player |
Affected:
0 , ≤ 2.0.2
(semver)
|
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CVE-2026-8629 (GCVE-0-2026-8629)
Vulnerability from cvelistv5 – Published: 2026-05-14 19:11 – Updated: 2026-07-14 22:03 X_Open Source
VLAI
EPSS
VEX
Title
Crabbox < v0.12.0 Privilege Escalation via Agent Ticket Endpoints
Summary
Crabbox prior to v0.12.0 contains a privilege escalation vulnerability that allows users with shared visibility-only access to obtain Code, WebVNC, and Egress agent tickets by sending POST requests to ticket endpoints. Attackers can exploit insufficient access control checks on the /v1/leases/:id/code/ticket, /v1/leases/:id/webvnc/ticket, and /v1/leases/:id/egress/ticket endpoints to obtain bridge-agent tickets and impersonate trusted lease-side bridges despite having only visibility permissions.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/crabbox/releases/tag/… | release-notes |
| https://github.com/openclaw/crabbox/pull/71 | issue-tracking |
| https://github.com/openclaw/crabbox/commit/95cb30… | patch |
| https://www.vulncheck.com/advisories/crabbox-priv… | third-party-advisory |
Impacted products
Date Public
2026-05-14 19:11
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CVE-2026-8611 (GCVE-0-2026-8611)
Vulnerability from cvelistv5 – Published: 2026-06-06 03:28 – Updated: 2026-06-06 11:42
VLAI
EPSS
VEX
Title
Klamra Paycal for Aspaclaria <= 1.1.4 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Exposure via 'invoice_id' Parameter
Summary
The Klamra Paycal for Aspaclaria plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.1.4 via the 'invoice_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to download arbitrary customer invoices by enumerating sequential post IDs, exposing sensitive billing PII including full name, email address, phone number, order total, line items, and customer notes belonging to other customers.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| klamra22 | Klamra Paycal for Aspaclaria |
Affected:
0 , ≤ 1.1.4
(semver)
|
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CVE-2026-8406 (GCVE-0-2026-8406)
Vulnerability from cvelistv5 – Published: 2026-06-11 13:32 – Updated: 2026-06-11 14:28
VLAI
EPSS
VEX
Title
openSIS Classic 9.3 - Insecure Direct Object Reference in Sent Mail
Summary
openSIS Classic 9.3 contains an insecure direct object reference vulnerability in the messaging module. Any authenticated user with access to the messaging module can request sent-message details from modules/messaging/SentMail.php by supplying an arbitrary mail_id value.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://fluidattacks.com/es/advisories/melanie | third-party-advisory |
| https://github.com/OS4ED/openSIS-Classic/commit/c… | patch |
| https://github.com/OS4ED/openSIS-Classic | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OS4ED | openSIS-Classic |
Affected:
9.3
|
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CVE-2026-8347 (GCVE-0-2026-8347)
Vulnerability from cvelistv5 – Published: 2026-05-22 14:06 – Updated: 2026-05-22 17:21
VLAI
EPSS
VEX
Title
Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in Express association Reorder dialog
Summary
Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog. This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity ordering. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://documentation.concretecms.org/9-x/develop… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Concrete CMS | Concrete CMS |
Affected:
5.0 , ≤ 9.5.0
(git)
|
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CVE-2026-8337 (GCVE-0-2026-8337)
Vulnerability from cvelistv5 – Published: 2026-05-21 21:13 – Updated: 2026-05-22 13:13
VLAI
EPSS
VEX
Title
Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys when sites are running concurrent public surveys and private surveys
Summary
Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys. To be vulnerable, a site would have to be configured in such a way that both public and private surveys are present on the site. An unauthenticated attacker can vote in the restricted survey by submitting the restricted optionID through the public survey’s endpoint. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Zer0daySec https://github.com/Zee99y for reporting
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://documentation.concretecms.org/9-x/develop… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Concrete CMS | Concrete CMS |
Affected:
5.0 , ≤ 9.5.0
(git)
|
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CVE-2026-8204 (GCVE-0-2026-8204)
Vulnerability from cvelistv5 – Published: 2026-05-21 20:56 – Updated: 2026-05-22 12:27
VLAI
EPSS
VEX
Title
Concrete CMS 9.5.0 and below is vulnerable to Authorization Bypass in the Calendar Event Frontend Dialog
Summary
Concrete CMS 9.5.0 and below is vulnerable to authorization Bypass in the Calendar Event Frontend Dialog which can allow cross-calendar data disclosure. A public calendar block can be used as a pivot point to access private calendar data. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://documentation.concretecms.org/9-x/develop… | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Concrete CMS | Concrete CMS |
Affected:
5 , ≤ 9.5.0
(git)
|
Credits
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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.