Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

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.

5268 vulnerabilities reference this CWE, most recent first.

CVE-2026-78142 (GCVE-0-2026-78142)

Vulnerability from cvelistv5 – Published: 2026-08-23 22:00 – Updated: 2026-08-24 15:01 X_Freeware
VLAI
Title
code-projects Barangay Resident Profiling Management System Restore/Delete archived_records.php authorization
Summary
A vulnerability was found in code-projects Barangay Resident Profiling Management System 1.0. This impacts an unknown function of the file /archived_records.php of the component Restore/Delete. The manipulation of the argument resident_id results in authorization bypass. The attack may be launched remotely. The exploit has been made public and could be used.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 15:01 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3937 records in the last 180 days details
References
Impacted products
Vendor Product Version
code-projects Barangay Resident Profiling Management System Affected: 1.0
    cpe:2.3:a:code-projects:barangay_resident_profiling_management_system:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
c4ttr4ck (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-78075 (GCVE-0-2026-78075)

Vulnerability from cvelistv5 – Published: 2026-08-31 13:59 – Updated: 2026-09-01 14:06
VLAI
Title
Joomla Extension - joomshaper.com - Broken Object-Level Authorization in Blog Image Deletion in Helix Ultimate < 2.2.10
Summary
Joomla Extension - joomshaper.com - Broken Object-Level Authorization in Blog Image Deletion in Helix Ultimate < 2.2.10 - `Blog::remove_image()` checked whether the user was authorized to edit the article ID passed in the request, but did not verify whether the specified image path (src) belonged to that article. On Joomla 3 builds where physical file deletion was triggered, an author could supply their own article ID alongside an arbitrary file path under the `/images/` directory to delete arbitrary files.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:16 UTC
CWE
  • CWE-639 - (Authorization Bypass Through User-Controlled Key)
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 344 records in the last 180 days details
References
Impacted products
Credits
Phil Taylor, mysites.guru
Show details on NVD website
To clipboard 

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CVE-2026-78065 (GCVE-0-2026-78065)

Vulnerability from cvelistv5 – Published: 2026-09-03 11:59 – Updated: 2026-09-03 13:18
VLAI
Title
Joomla Extension - j2commerce.com - Guest checkout address disclosure to any authenticated user (IDOR) in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6
Summary
Joomla Extension - j2commerce.com - Guest checkout address disclosure to any authenticated user (IDOR) in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `editAddress()` redirected non-owners away only when the loaded address row had a **non-empty** `user_id` belonging to someone else. Guest-checkout address rows have an empty `user_id`, so that check never triggered for them — any logged-in account guessing a small, sequential `address_id` got a guest customer's full name, street address, and phone number rendered prefilled into the edit form.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 13:02 UTC
CWE
  • CWE-639 - (Authorization Bypass Through User-Controlled Key)
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 344 records in the last 180 days details
References
URL Tags
https://www.j2commerce.com/ product
Impacted products
Vendor Product Version
j2commerce.com J2Store extension for Joomla Affected: 1.0.0-3.3.21
Affected: 4.0.0-4.0.21
Affected: 4.1.0-4.1.6
Create a notification for this product.
Credits
Phil Taylor, mysites.guru
Show details on NVD website
To clipboard 

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CVE-2026-78064 (GCVE-0-2026-78064)

Vulnerability from cvelistv5 – Published: 2026-09-03 11:54 – Updated: 2026-09-03 12:36
VLAI
Title
Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6
Summary
Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `fof.xml` grants the `carts` view's tasks a wildcard `true` ACL, and FOF only enforces CSRF tokens on back-end HTML requests, not on front-end `format=raw` requests. `J2StoreControllerCarts` already scoped `remove()` to the caller's own session, but never overrode the generic FOF `save` task, so it remained reachable to insert new cart rows with an attacker-chosen `user_id`/`session_id`, or overwrite an existing row by id.
Severity
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 12:26 UTC
CWE
  • CWE-639 - (Authorization Bypass Through User-Controlled Key)
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 344 records in the last 180 days details
References
URL Tags
https://www.j2commerce.com/ product
Impacted products
Vendor Product Version
j2commerce.com J2Store extension for Joomla Affected: 1.0.0-3.3.21
Affected: 4.0.0-4.0.21
Affected: 4.1.0-4.1.6
Create a notification for this product.
Credits
Phil Taylor, mysites.guru
Show details on NVD website
To clipboard 

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CVE-2026-78026 (GCVE-0-2026-78026)

Vulnerability from cvelistv5 – Published: 2026-10-09 09:21 – Updated: 2026-10-10 12:16
VLAI
Summary
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Authorization Bypass Through User-Controlled Key vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 03:55 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
dell CNA under the mitre root
CNA scorecard C 70/100 over 442 records in the last 180 days details
References
Impacted products
Vendor Product Version
Dell Secure Connect Gateway (SCG) Policy Manager Affected: 0 , < 5.36.00.16 or later (semver)
Create a notification for this product.
Date Public
2026-08-31 06:30
Show details on NVD website
To clipboard 

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CVE-2026-78023 (GCVE-0-2026-78023)

Vulnerability from cvelistv5 – Published: 2026-10-09 09:06 – Updated: 2026-10-10 12:12
VLAI
Summary
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Authorization Bypass Through User-Controlled Key vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 03:55 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
dell CNA under the mitre root
CNA scorecard C 70/100 over 442 records in the last 180 days details
References
Impacted products
Vendor Product Version
Dell Secure Connect Gateway (SCG) Policy Manager Affected: 0 , < 5.36.00.16 or later (semver)
Create a notification for this product.
Date Public
2026-08-31 06:30
Show details on NVD website
To clipboard 

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CVE-2026-77998 (GCVE-0-2026-77998)

Vulnerability from cvelistv5 – Published: 2026-08-25 12:50 – Updated: 2026-09-08 10:38
VLAI
Title
Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO < 11.0.2, SAML SP Single Sign On – Login with ADFS < 6.4, SAML SP Single Sign On – SAML SSO login with Google Apps < 6.4
Summary
Joomla Extension - miniorange.com - Unauthenticated Authentication Bypass via SAMLResponse Parameter in miniOrange SAML SSO < 11.0.2, SAML SP Single Sign On – Login with ADFS < 6.4, SAML SP Single Sign On – SAML SSO login with Google Apps < 6.4 - This is due to the mo_saml_validate_signature() function performing a loose boolean check on the raw tri-state integer returned by PHP's openssl_verify(), causing an error return value of -1 to be evaluated as truthy and therefore treated as a successful signature verification. This makes it possible for unauthenticated attackers to log in as any existing Joomla user, including administrators, by submitting a crafted SAMLResponse containing an attacker-controlled NameID and a deliberately malformed signature value that triggers an OpenSSL processing error — bypassing verification entirely and resulting in wp_set_auth_cookie() being called for the targeted account.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:38 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 344 records in the last 180 days details
References
URL Tags
https://www.miniorange.com/ product
Impacted products
Credits
Supakiad S. (m3ez) Phil Taylor, mysites.guru
Show details on NVD website
To clipboard 

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CVE-2026-77995 (GCVE-0-2026-77995)

Vulnerability from cvelistv5 – Published: 2026-08-24 13:05 – Updated: 2026-09-08 10:32
VLAI
Title
Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client < 3.2.0, OAuth Single Sign-On – OIDC SSO < 1.2.2, Login with Keycloak OAuth Single Sign-On (SSO) < 1.2.2, Single Sign-On for Educational Institutes < 1.2.2
Summary
Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client < 3.2.0, OAuth Single Sign-On – OIDC SSO < 1.2.2, Login with Keycloak OAuth Single Sign-On (SSO) < 1.2.2, Single Sign-On for Educational Institutes < 1.2.2 - The manipulation of a cookie value allows actors to login as arbitrary accounts, including admins.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 17:25 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 344 records in the last 180 days details
References
URL Tags
https://www.miniorange.com/ product
Impacted products
Credits
Krzysztof Zając, CERT PL
Show details on NVD website
To clipboard 

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CVE-2026-77990 (GCVE-0-2026-77990)

Vulnerability from cvelistv5 – Published: 2026-08-27 05:47 – Updated: 2026-08-28 07:45
VLAI
Title
Joomla Extension - joomlaeventmanager.net - Attendee lists readable by any logged-in user in Joomla Event Manager < 5.0.1
Summary
Joomla Extension - joomlaeventmanager.net - Attendee lists readable by any logged-in user in Joomla Event Manager < 5.0.1 - A non-manager can therefore read attendee names, usernames, registration dates and statuses for events they do not manage, including lists belonging to unpublished events.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 15:03 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Joomla CNA under the mitre root
CNA scorecard C 73/100 over 344 records in the last 180 days details
References
Impacted products
Credits
Phil Taylor, mysites.guru
Show details on NVD website
To clipboard 

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CVE-2026-77937 (GCVE-0-2026-77937)

Vulnerability from cvelistv5 – Published: 2026-10-20 00:46 – Updated: 2026-10-20 13:48 Unsupported When Assigned
VLAI
Title
Letta through 0.16.8 Cross-Tenant Impersonation via user_id Header
Summary
Letta through 0.16.8 contains an authentication bypass vulnerability that allows API callers to impersonate other users by supplying a self-asserted user_id HTTP header. Attackers can set user_id to another tenant's ID, even with LETTA_SERVER_SECURE enabled, to read and modify that user's agents, memory and configuration.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 13:48 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6752 records in the last 180 days details
References
Impacted products
Vendor Product Version
letta-ai letta Affected: 0 , ≤ 0.16.8 (semver)
    cpe:2.3:a:letta:letta:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-18 00:00
Credits
Noy Pearl Michael Sromin Ophir Dror
Show details on NVD website
To clipboard 

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          "url": "https://github.com/letta-ai/letta/blob/1131535716e8a31c9a437f8695e25ac98f203a24/letta/server/rest_api/dependencies.py#L39"
        },
        {
          "name": "VulnCheck Advisory: Letta through 0.16.8 Cross-Tenant Impersonation via user_id Header",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/letta-through-0.16.8-cross-tenant-impersonation-via-user-id-header"
        }
      ],
      "tags": [
        "unsupported-when-assigned"
      ],
      "title": "Letta through 0.16.8 Cross-Tenant Impersonation via user_id Header",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-77937",
    "datePublished": "2026-10-20T00:46:14.829Z",
    "dateReserved": "2026-08-21T17:52:36.080Z",
    "dateUpdated": "2026-10-20T13:48:37.840Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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.

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