Common Weakness Enumeration
CWE-285
DiscouragedImproper Authorization
Abstraction: Class · Status: Draft
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
2301 vulnerabilities reference this CWE, most recent first.
CVE-2026-40259 (GCVE-0-2026-40259)
Vulnerability from cvelistv5 – Published: 2026-04-16 22:49 – Updated: 2026-04-20 14:59
VLAI
EPSS
VEX
Title
SiYuan: Publish Reader Can Arbitrarily Delete Attribute View Files via removeUnusedAttributeView API
Summary
SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and below, the /api/av/removeUnusedAttributeView endpoint is protected only by generic authentication that accepts publish-service RoleReader tokens. The handler passes a caller-controlled id directly to a model function that unconditionally deletes the corresponding attribute view file from the workspace without verifying that the caller has write privileges or that the target attribute view is actually unused. An authenticated publish-service reader can permanently delete arbitrary attribute view definitions by extracting publicly exposed data-av-id values from published content, causing breakage of database views and workspace rendering until manually restored. This issue has been fixed in version 3.6.4.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/siyuan-note/siyuan/security/ad… | x_refsource_CONFIRM |
| https://github.com/siyuan-note/siyuan/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| siyuan-note | siyuan |
Affected:
< 0.0.0-20260407035653-2f416e5253f1
Affected: < 3.6.4 |
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CVE-2026-40248 (GCVE-0-2026-40248)
Vulnerability from cvelistv5 – Published: 2026-04-16 21:57 – Updated: 2026-04-20 15:00
VLAI
EPSS
VEX
Title
free5gc UDR improper path validation allows unauthenticated creation and modification of Traffic Influence Subscriptions
Summary
free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for creating or updating Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when validation fails. Execution continues and the subscription is created or overwritten regardless. An unauthenticated attacker with access to the 5G Service Based Interface can create or overwrite arbitrary Traffic Influence Subscriptions, including injecting attacker-controlled notificationUri values and arbitrary SUPIs, by supplying any value for the influenceId path segment. A patched version was not available at the time of publication.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/free5gc/free5gc/security/advis… | x_refsource_CONFIRM |
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CVE-2026-40247 (GCVE-0-2026-40247)
Vulnerability from cvelistv5 – Published: 2026-04-16 21:54 – Updated: 2026-04-17 18:44
VLAI
EPSS
VEX
Title
free5gc UDR improper path validation allows unauthenticated access to Traffic Influence Subscriptions
Summary
free5GC is an open-source implementation of the 5G core network. In versions 4.2.1 and below of the UDR service, the handler for reading Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when validation fails. Execution continues and the subscription data is returned alongside the 404 response. An unauthenticated attacker with access to the 5G Service Based Interface can read arbitrary Traffic Influence Subscriptions, including SUPIs/IMSIs, DNNs, S-NSSAIs, and callback URIs, by supplying any value for the influenceId path segment. A patched version was not available at the time of publication.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/free5gc/free5gc/security/advis… | x_refsource_CONFIRM |
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CVE-2026-40246 (GCVE-0-2026-40246)
Vulnerability from cvelistv5 – Published: 2026-04-16 21:40 – Updated: 2026-04-18 02:46
VLAI
EPSS
VEX
Title
free5gc UDR improper path validation allows unauthenticated deletion of Traffic Influence Subscriptions
Summary
free5GC is an open-source implementation of the 5G core network. In versions 1.4.2 and below of the UDR service, the handler for deleting Traffic Influence Subscriptions checks whether the influenceId path segment equals subs-to-notify, but does not return after sending the HTTP 404 response when validation fails. Execution continues and the subscription is deleted regardless. An unauthenticated attacker with access to the 5G Service Based Interface can delete arbitrary Traffic Influence Subscriptions by supplying any value for the influenceId path segment, while the API misleadingly returns a 404 Not Found response. A patched version was not available at the time of publication.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/free5gc/free5gc/security/advis… | x_refsource_CONFIRM |
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CVE-2026-39901 (GCVE-0-2026-39901)
Vulnerability from cvelistv5 – Published: 2026-04-08 21:02 – Updated: 2026-04-10 20:55
VLAI
EPSS
VEX
Title
monetr: Protected Transactions Deletable via PUT
Summary
monetr is a budgeting application focused on planning for recurring expenses. Prior to 1.12.3, a transaction integrity flaw allows an authenticated tenant user to soft-delete synced non-manual transactions through the transaction update endpoint, despite the application explicitly blocking deletion of those transactions via the normal DELETE path. This bypass undermines the intended protection for imported transaction records and allows protected transactions to be hidden from normal views. This vulnerability is fixed in 1.12.3.
Severity
5.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/monetr/monetr/security/advisor… | x_refsource_CONFIRM |
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CVE-2026-39389 (GCVE-0-2026-39389)
Vulnerability from cvelistv5 – Published: 2026-04-08 14:28 – Updated: 2026-04-10 20:28
VLAI
EPSS
VEX
Title
CI4MS has a Hidden Items Authorization Bypass in Fileeditor Allows Reading Secrets and Writing Protected Files
Summary
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, This vulnerability is fixed in 0.31.4.0.
Severity
6.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ci4-cms-erp/ci4ms/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ci4-cms-erp | ci4ms |
Affected:
< 0.31.4.0
|
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CVE-2026-39347 (GCVE-0-2026-39347)
Vulnerability from cvelistv5 – Published: 2026-04-07 18:20 – Updated: 2026-04-09 16:17
VLAI
EPSS
VEX
Title
OrangeHRM's Self‑Appraisal Submission of Admin Users Can Be Modified After Completion
Summary
OrangeHRM is a comprehensive human resource management (HRM) system. From 5.0 to 5.8, OrangeHRM Open Source accepts changes to self-appraisal submissions for administrator users after those submissions have been marked completed, breaking integrity of finalized appraisal records. This vulnerability is fixed in 5.8.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/orangehrm/orangehrm/security/a… | x_refsource_CONFIRM |
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CVE-2026-35610 (GCVE-0-2026-35610)
Vulnerability from cvelistv5 – Published: 2026-04-07 16:56 – Updated: 2026-04-07 18:32
VLAI
EPSS
VEX
Title
PolarLearn has a Server Action Admin Bypass in Account Management Actions
Summary
PolarLearn is a free and open-source learning program. In 0-PRERELEASE-14 and earlier, setCustomPassword(userId, password) and deleteUser(userId) in the account-management module used an inverted admin check. Because of the inverted condition, authenticated non-admin users were allowed to execute both actions, while real admins were rejected. This is a direct privilege-escalation issue in the application.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/polarnl/PolarLearn/security/ad… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| polarnl | PolarLearn |
Affected:
<= 0-PRERELEASE-14
|
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CVE-2026-35479 (GCVE-0-2026-35479)
Vulnerability from cvelistv5 – Published: 2026-04-08 19:27 – Updated: 2026-04-09 14:16
VLAI
EPSS
VEX
Title
InvenTree Plugin Installation - Insufficient Permissions
Summary
InvenTree is an Open Source Inventory Management System. Prior to 1.2.7 and 1.3.0, any users who have staff access permissions can install plugins via the API, without requiring "superuser" account access. This level of permission requirement is out of alignment with other plugin actions (such as uninstalling) which do require superuser access. The vulnerability allows staff users (who may be considered to have a lower level of trust than a superuser account) to install arbitrary (and potentially harmful) plugins. This vulnerability is fixed in 1.2.7 and 1.3.0.
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/inventree/InvenTree/security/a… | x_refsource_CONFIRM |
| https://docs.inventree.org/en/stable/concepts/thr… | x_refsource_MISC |
| https://docs.inventree.org/en/stable/start/config… | x_refsource_MISC |
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CVE-2026-35476 (GCVE-0-2026-35476)
Vulnerability from cvelistv5 – Published: 2026-04-08 19:26 – Updated: 2026-04-08 19:53
VLAI
EPSS
VEX
Title
InvenTree Affected by Privilege Escalation via API
Summary
InvenTree is an Open Source Inventory Management System. Prior to 1.2.7 and 1.3.0, a non-staff authenticated user can elevate their account to a staff level via a POST request against their user account endpoint. The write permissions on the API endpoint are improperly configured, allowing any user to change their staff status. This vulnerability is fixed in 1.2.7 and 1.3.0.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-285 - Improper Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/inventree/InvenTree/security/a… | x_refsource_CONFIRM |
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/inventree/InvenTree/security/advisories/GHSA-r8q5-3595-3jh2",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/inventree/InvenTree/security/advisories/GHSA-r8q5-3595-3jh2"
},
{
"name": "https://docs.inventree.org/en/stable/concepts/threat_model/#assumed-trust",
"tags": [
"x_refsource_MISC"
],
"url": "https://docs.inventree.org/en/stable/concepts/threat_model/#assumed-trust"
}
],
"source": {
"advisory": "GHSA-r8q5-3595-3jh2",
"discovery": "UNKNOWN"
},
"title": "InvenTree Affected by Privilege Escalation via API"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-35476",
"datePublished": "2026-04-08T19:26:12.692Z",
"dateReserved": "2026-04-02T20:49:44.453Z",
"dateUpdated": "2026-04-08T19:53:28.982Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
- Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
- Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design
Ensure that you perform access control checks related to your business logic. These checks may be different than the access control checks that you apply to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor.
Mitigation MIT-4.4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
- For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
- One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration
Installation
Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.
CAPEC-104: Cross Zone Scripting
An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security.
CAPEC-127: Directory Indexing
An adversary crafts a request to a target that results in the target listing/indexing the content of a directory as output. One common method of triggering directory contents as output is to construct a request containing a path that terminates in a directory name rather than a file name since many applications are configured to provide a list of the directory's contents when such a request is received. An adversary can use this to explore the directory tree on a target as well as learn the names of files. This can often end up revealing test files, backup files, temporary files, hidden files, configuration files, user accounts, script contents, as well as naming conventions, all of which can be used by an attacker to mount additional attacks.
CAPEC-13: Subverting Environment Variable Values
The adversary directly or indirectly modifies environment variables used by or controlling the target software. The adversary's goal is to cause the target software to deviate from its expected operation in a manner that benefits the adversary.
CAPEC-17: Using Malicious Files
An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
CAPEC-39: Manipulating Opaque Client-based Data Tokens
In circumstances where an application holds important data client-side in tokens (cookies, URLs, data files, and so forth) that data can be manipulated. If client or server-side application components reinterpret that data as authentication tokens or data (such as store item pricing or wallet information) then even opaquely manipulating that data may bear fruit for an Attacker. In this pattern an attacker undermines the assumption that client side tokens have been adequately protected from tampering through use of encryption or obfuscation.
CAPEC-402: Bypassing ATA Password Security
An adversary exploits a weakness in ATA security on a drive to gain access to the information the drive contains without supplying the proper credentials. ATA Security is often employed to protect hard disk information from unauthorized access. The mechanism requires the user to type in a password before the BIOS is allowed access to drive contents. Some implementations of ATA security will accept the ATA command to update the password without the user having authenticated with the BIOS. This occurs because the security mechanism assumes the user has first authenticated via the BIOS prior to sending commands to the drive. Various methods exist for exploiting this flaw, the most common being installing the ATA protected drive into a system lacking ATA security features (a.k.a. hot swapping). Once the drive is installed into the new system the BIOS can be used to reset the drive password.
CAPEC-45: Buffer Overflow via Symbolic Links
This type of attack leverages the use of symbolic links to cause buffer overflows. An adversary can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
CAPEC-5: Blue Boxing
This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
{'xhtml:b': 'This attack pattern is included in CAPEC for historical purposes.'}
CAPEC-51: Poison Web Service Registry
SOA and Web Services often use a registry to perform look up, get schema information, and metadata about services. A poisoned registry can redirect (think phishing for servers) the service requester to a malicious service provider, provide incorrect information in schema or metadata, and delete information about service provider interfaces.
CAPEC-59: Session Credential Falsification through Prediction
This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
CAPEC-60: Reusing Session IDs (aka Session Replay)
This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
CAPEC-647: Collect Data from Registries
An adversary exploits a weakness in authorization to gather system-specific data and sensitive information within a registry (e.g., Windows Registry, Mac plist). These contain information about the system configuration, software, operating system, and security. The adversary can leverage information gathered in order to carry out further attacks.
CAPEC-668: Key Negotiation of Bluetooth Attack (KNOB)
An adversary can exploit a flaw in Bluetooth key negotiation allowing them to decrypt information sent between two devices communicating via Bluetooth. The adversary uses an Adversary in the Middle setup to modify packets sent between the two devices during the authentication process, specifically the entropy bits. Knowledge of the number of entropy bits will allow the attacker to easily decrypt information passing over the line of communication.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
CAPEC-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.
CAPEC-87: Forceful Browsing
An attacker employs forceful browsing (direct URL entry) to access portions of a website that are otherwise unreachable. Usually, a front controller or similar design pattern is employed to protect access to portions of a web application. Forceful browsing enables an attacker to access information, perform privileged operations and otherwise reach sections of the web application that have been improperly protected.