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.
3256 vulnerabilities reference this CWE, most recent first.
CVE-2026-1992 (GCVE-0-2026-1992)
Vulnerability from cvelistv5 – Published: 2026-03-11 09:25 – Updated: 2026-03-11 13:30
VLAI
EPSS
VEX
Title
ExactMetrics 8.6.0 - 9.0.2 - Authenticated (Custom) Insecure Direct Object Reference to Arbitrary Plugin Installation
Summary
The ExactMetrics – Google Analytics Dashboard for WordPress plugin is vulnerable to Insecure Direct Object Reference in versions 8.6.0 through 9.0.2. This is due to the `store_settings()` method in the `ExactMetrics_Onboarding` class accepting a user-supplied `triggered_by` parameter that is used instead of the current user's ID to check permissions. This makes it possible for authenticated attackers with the `exactmetrics_save_settings` capability to bypass the `install_plugins` capability check by specifying an administrator's user ID in the `triggered_by` parameter, allowing them to install arbitrary plugins and achieve Remote Code Execution. This vulnerability only affects sites on which administrator has given other user types the permission to view reports and can only be exploited by users of that type.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| smub | ExactMetrics – Google Analytics Dashboard for WordPress (Website Stats Plugin) |
Affected:
8.0.0 , ≤ 9.0.2
(semver)
|
Credits
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CVE-2026-1989 (GCVE-0-2026-1989)
Vulnerability from cvelistv5 – Published: 2026-07-09 08:56 – Updated: 2026-07-09 12:33
VLAI
EPSS
VEX
Title
IDOR in PAVO Inc.'s PAVO Pay
Summary
Authorization bypass through User-Controlled key vulnerability in PAVO Financial Technology Solutions Inc. PAVO Pay allows Exploitation of Trusted Identifiers.
This issue affects PAVO Pay: through 09072026. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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
1 reference
| URL | Tags |
|---|---|
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PAVO Financial Technology Solutions Inc. | PAVO Pay |
Affected:
0 , ≤ 09072026
(custom)
|
Date Public
2026-07-09 08:47
Credits
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CVE-2026-1987 (GCVE-0-2026-1987)
Vulnerability from cvelistv5 – Published: 2026-02-14 06:42 – Updated: 2026-04-08 17:34
VLAI
EPSS
VEX
Title
Scheduler Widget <= 0.1.6 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Event Modification
Summary
The Scheduler Widget plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 0.1.6. This is due to the `scheduler_widget_ajax_save_event()` function lacking proper authorization checks and ownership verification when updating events. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify any event in the scheduler via the `id` parameter granted they have knowledge of the event ID.
Severity
5.4 (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
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| morelmathieuj | Scheduler Widget |
Affected:
0 , ≤ 0.1.6
(semver)
|
Credits
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CVE-2026-1947 (GCVE-0-2026-1947)
Vulnerability from cvelistv5 – Published: 2026-03-15 01:19 – Updated: 2026-04-08 17:16
VLAI
EPSS
VEX
Title
NEX-Forms – Ultimate Forms Plugin for WordPress <= 9.1.9 - Missing Authorization to Unauthenticated Arbitrary Form Entry Modification via nf_set_entry_update_id
Summary
The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 9.1.9 via the submit_nex_form() function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to to overwrite arbitrary form entries via the 'nf_set_entry_update_id' parameter.
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 | |
|---|---|---|---|
| webaways | NEX-Forms – Ultimate Forms Plugin for WordPress |
Affected:
0 , ≤ 9.1.9
(semver)
|
Credits
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CVE-2026-1883 (GCVE-0-2026-1883)
Vulnerability from cvelistv5 – Published: 2026-03-15 01:19 – Updated: 2026-04-08 16:55
VLAI
EPSS
VEX
Title
Wicked Folders <= 4.1.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Folder Deletion
Summary
The Wicked Folders – Folder Organizer for Pages, Posts, and Custom Post Types plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.1.0 via the delete_folders() function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary folders created by other users.
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
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wickedplugins | Wicked Folders – Folder Organizer for Pages, Posts, and Custom Post Types |
Affected:
0 , ≤ 4.1.0
(semver)
|
Credits
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CVE-2026-1881 (GCVE-0-2026-1881)
Vulnerability from cvelistv5 – Published: 2026-05-21 01:26 – Updated: 2026-05-21 14:24
VLAI
EPSS
VEX
Title
Broadstreet <= 1.52.2 - Authenticated (Subscriber+) Private Post Meta Disclosure via get_sponsored_meta
Summary
The Broadstreet plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.52.2 via the get_sponsored_meta AJAX action due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disclose any private post metadata.
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
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| broadstreetads | Broadstreet |
Affected:
0 , ≤ 1.52.2
(semver)
|
Credits
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CVE-2026-1704 (GCVE-0-2026-1704)
Vulnerability from cvelistv5 – Published: 2026-03-13 07:23 – Updated: 2026-04-08 17:21
VLAI
EPSS
VEX
Title
Appointment Booking Calendar <= 1.6.9.29 - Insecure Direct Object Reference to Authenticated (Staff+) Sensitive Information Exposure
Summary
The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.6.9.29. This is due to the `get_item_permissions_check` method granting access to users with the `ssa_manage_appointments` capability without validating staff ownership of the requested appointment. This makes it possible for authenticated attackers, with custom-level access and above (users granted the ssa_manage_appointments capability, such as Team Members), to view appointment records belonging to other staff members and access sensitive customer personally identifiable information via the appointment ID parameter.
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
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| croixhaug | Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin |
Affected:
0 , ≤ 1.6.9.29
(semver)
|
Credits
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CVE-2026-1664 (GCVE-0-2026-1664)
Vulnerability from cvelistv5 – Published: 2026-02-03 11:39 – Updated: 2026-02-03 14:46
VLAI
EPSS
VEX
Title
Insecure Direct Object Reference (IDOR) via Header-Based Email Routing
Summary
Summary
An Insecure Direct Object Reference has been found to exist in `createHeaderBasedEmailResolver()` function within the Cloudflare Agents SDK. The issue occurs because the `Message-ID` and `References` headers are parsed to derive the target agentName and agentId without proper validation or origin checks, allowing an external attacker with control of these headers to route inbound mail to arbitrary Durable Object instances and namespaces .
Root cause
The `createHeaderBasedEmailResolver()` function lacks cryptographic verification or origin validation for the headers used in the routing logic, effectively allowing external input to dictate internal object routing.
Impact
Insecure Direct Object Reference (IDOR) in email routing lets an attacker steer inbound mail to arbitrary Agent instances via spoofed Message-ID.
Mitigation:
* PR: https://github.com/cloudflare/agents/blob/main/docs/email.md ] provides the necessary architectural context for coding agents to mitigate the issue by refactoring the resolver to enforce strict identity boundaries.
* Agents-sdk users should upgrade to agents@0.3.7
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/cloudflare/agents |
Credits
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CVE-2026-1619 (GCVE-0-2026-1619)
Vulnerability from cvelistv5 – Published: 2026-02-13 13:20 – Updated: 2026-06-06 07:56
VLAI
EPSS
VEX
Title
IDOR in Universal Sotware's FlexCity/Kiosk
Summary
Authorization Bypass Through User-Controlled Key vulnerability in Universal Software Inc. FlexCity/Kiosk allows Exploitation of Trusted Identifiers.
This issue affects FlexCity/Kiosk: from 1.0 before 1.0.36.
Severity
8.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.usom.gov.tr/bildirim/tr-26-0065 | government-resourcebroken-link |
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Universal Software Inc. | FlexCity/Kiosk |
Affected:
1.0 , < 1.0.36
(custom)
|
Date Public
2026-02-13 13:16
Credits
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CVE-2026-1558 (GCVE-0-2026-1558)
Vulnerability from cvelistv5 – Published: 2026-02-27 04:33 – Updated: 2026-04-08 17:06
VLAI
EPSS
VEX
Title
WP Recipe Maker <= 10.3.2 - Insecure Direct Object Reference to Unauthenticated Arbitrary Post Metadata Modification via 'recipeId' Parameter
Summary
The WP Recipe Maker plugin for WordPress is vulnerable to an Insecure Direct Object Reference (IDOR) in versions up to, and including, 10.3.2. This is due to the /wp-json/wp-recipe-maker/v1/integrations/instacart REST API endpoint's permission_callback being set to __return_true and a lack of subsequent authorization or ownership checks on the user-supplied recipeId. This makes it possible for unauthenticated attackers to overwrite arbitrary post metadata (wprm_instacart_combinations) for any post ID on the site via the recipeId parameter.
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
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| brechtvds | WP Recipe Maker |
Affected:
0 , ≤ 10.3.2
(semver)
|
Credits
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"url": "https://plugins.trac.wordpress.org/browser/wp-recipe-maker/tags/10.3.2/includes/public/api/class-wprm-api-integrations.php#L40"
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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.