Common Weakness Enumeration
CWE-287
DiscouragedImproper Authentication
Abstraction: Class · Status: Draft
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
6392 vulnerabilities reference this CWE, most recent first.
CVE-2026-15542 (GCVE-0-2026-15542)
Vulnerability from cvelistv5 – Published: 2026-07-13 07:00 – Updated: 2026-07-15 14:10
VLAI
EPSS
VEX
Title
will-moss Isaiah Websocket Connection Authentication main.go improper authentication
Summary
A vulnerability has been found in will-moss Isaiah up to 1.36.9. This affects an unknown function of the file app/main.go of the component Websocket Connection Authentication. The manipulation leads to improper authentication. The attack can be initiated remotely. The pull request to fix this issue awaits acceptance.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 14:10 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377892 | vdb-entry |
| https://vuldb.com/vuln/377892/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15542 | third-party-advisory |
| https://vuldb.com/submit/855075 | third-party-advisory |
| https://github.com/will-moss/isaiah/issues/33 | issue-tracking |
| https://github.com/will-moss/isaiah/pull/36 | issue-trackingpatch |
| https://github.com/will-moss/isaiah/ | product |
Impacted products
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CVE-2026-15491 (GCVE-0-2026-15491)
Vulnerability from cvelistv5 – Published: 2026-07-12 09:45 – Updated: 2026-07-14 14:41
VLAI
EPSS
VEX
Title
RafyMrX TOKO-ONLINE-ROTI missing authentication
Summary
A weakness has been identified in RafyMrX TOKO-ONLINE-ROTI up to ddfe1cd587be0a0b5135d8b6e85cce2ec3aece99. This affects an unknown part. This manipulation causes missing authentication. The attack is possible to be carried out remotely. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 14:40 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377798 | vdb-entry |
| https://vuldb.com/vuln/377798/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15491 | third-party-advisory |
| https://vuldb.com/submit/844137 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RafyMrX | TOKO-ONLINE-ROTI |
Affected:
ddfe1cd587be0a0b5135d8b6e85cce2ec3aece99
cpe:2.3:a:rafymrx:toko-online-roti:*:*:*:*:*:*:*:* |
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CVE-2026-15459 (GCVE-0-2026-15459)
Vulnerability from cvelistv5 – Published: 2026-08-06 04:26 – Updated: 2026-08-06 14:53
VLAI
EPSS
VEX
Title
WPMU DEV Dashboard <= 5.0.0 - Authentication Bypass to Arbitrary Plugin Installation (Remote Code Execution) via Forged WDP_AUTH HMAC on ?wpmudev-hub= Endpoint
Summary
The WPMU DEV Dashboard plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 5.0.0. On sites not yet connected to the WPMU DEV Hub — the default state after installation — the site API key that keys the WDP-AUTH request signature is empty, making the signature verified by validate_hash() trivially forgeable; version 5.0.0 additionally removed the replay check in validate_nonce(), and the remote handler is bound to the public init hook with no capability check. This makes it possible for unauthenticated attackers to invoke privileged Hub actions — including installing and activating a plugin from an attacker-supplied URL (resulting in remote code execution), deleting plugins and themes, upgrading WordPress core, or logging in as an administrator via SSO. Sites connected to a WPMU DEV account, which have a non-empty 64-character API key, are not affected.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 14:52 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpmudev | WPMU DEV Dashboard |
Affected:
0 , ≤ 5.0.0
(semver)
|
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CVE-2026-15348 (GCVE-0-2026-15348)
Vulnerability from cvelistv5 – Published: 2026-07-23 09:33 – Updated: 2026-07-23 13:54
VLAI
EPSS
VEX
Title
Premium Packages <= 7.0.4 - Authentication Bypass to Non-Admin via 'wpdmppdl' Parameter
Summary
The Premium Packages – Sell Digital Products Securely plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 7.0.4 via the `wpdmppdl` parameter. This is due to the `download()` function — hooked to the unauthenticated WordPress `wp` action — decoding the attacker-controlled `wpdmppdl` parameter using only `base64_decode()` and `json_decode()` with no HMAC, cryptographic signature, or nonce verification, and then issuing WordPress authentication cookies after a domain check that is trivially bypassed because both sides of the comparison are attacker-supplied values. This makes it possible for unauthenticated attackers to authenticate as any non-administrator WordPress user, including subscribers, customers, contributors, authors, editors, and shop managers, who owns an order, gaining full session-level access to that account.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:54 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
12 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| codename065 | Premium Packages – Sell Digital Products Securely |
Affected:
0 , ≤ 7.0.4
(semver)
|
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CVE-2026-15341 (GCVE-0-2026-15341)
Vulnerability from cvelistv5 – Published: 2026-08-15 02:26 – Updated: 2026-08-17 15:55
VLAI
EPSS
VEX
Title
User Session Synchronizer <= 1.4.0 - Unauthenticated Authentication Bypass to Account Takeover via 'ussync-key', 'ussync-token', and 'ussync-ref' Parameters
Summary
The User Session Synchronizer plugin for WordPress is vulnerable to Authentication Bypass leading to Account Takeover in all versions up to, and including, 1.4.0. The `synchronize_session()` function, hooked on `init` and therefore executed on every request, performs no nonce, capability, or shared-secret validation against the attacker-supplied `ussync-key`, `ussync-token`, and `ussync-ref` parameters; when `ussync-key` references an unregistered slot, `get_option()` returns `false` for both the secret key and the domain list, causing the AES-256-CBC encryption key to degrade to the fully predictable `md5('')` and the referer allowlist to collapse to an empty-string match, while the AES IV is unconditionally hard-coded as `md5('another-secret')`. This makes it possible for unauthenticated attackers to supply a crafted request encrypting any known or guessable user email address in the `ussync-ref` parameter, causing the handler to call `wp_set_auth_cookie()` for the matched user and granting full authentication as that user — including administrators — with no prior knowledge of site secrets.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 15:55 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| rafasashi | User Session Synchronizer |
Affected:
0 , ≤ 1.4.0
(semver)
|
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CVE-2026-15315 (GCVE-0-2026-15315)
Vulnerability from cvelistv5 – Published: 2026-08-18 21:24 – Updated: 2026-08-27 23:08
VLAI
EPSS
VEX
Title
Unauthenticated Administrative Authentication Bypass via device_confirm Replay in TP-Link Tapo C120 and C200
Summary
Tapo C120 v1 and C200 v5
contain an improper authentication vulnerability within the login
authentication verification module. An attacker on the local network can
exploit weaknesses in challenge parameter validation to bypass normal
authentication controls and obtain administrative session tokens.
Successful
exploitation may allow an attacker to subsequently execute privileged
management actions, enable unauthorized administrative access and temporary
disruption of device services, resulting in a denial-of-service (DoS)
condition.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 13:31 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Tapo C200 v5 |
Affected:
0 , < V5_1.4.6 Build 260709 Rel.27675n
(custom)
|
|
| TP-Link Systems Inc | Tapo C120 v1 |
Affected:
0 , < 1.9.3 Build 260521
(custom)
|
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CVE-2026-15303 (GCVE-0-2026-15303)
Vulnerability from cvelistv5 – Published: 2026-08-15 02:26 – Updated: 2026-08-17 19:38
VLAI
EPSS
VEX
Title
6Storage Rentals <= 2.27.0 - Unauthenticated Account Takeover via 'email' Parameter
Summary
The 6Storage Rentals plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.27.0. This is due to the six_storage_create_wp_user() AJAX handler being registered on wp_ajax_nopriv_six_storage_create_wp_user without any nonce, capability, credential, or ownership verification, while calling wp_set_current_user() and wp_set_auth_cookie() for any WordPress user resolved by the attacker-supplied email address. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by submitting that user's email address.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 19:26 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sixstorage | 6Storage Rentals |
Affected:
0 , ≤ 2.27.0
(semver)
|
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CVE-2026-15192 (GCVE-0-2026-15192)
Vulnerability from cvelistv5 – Published: 2026-07-09 16:30 – Updated: 2026-07-09 18:08
VLAI
EPSS
VEX
Title
mettle sendportal APIv1 Webhooks mailjet missing authentication
Summary
A vulnerability has been found in mettle sendportal up to 3.0.1. This issue affects the function sendgrid/postmark/postal/mailjet of the component APIv1 Webhooks. The manipulation leads to missing authentication. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 17:53 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377118 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377118/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15192 | third-party-advisory |
| https://vuldb.com/submit/851624 | third-party-advisory |
| https://github.com/mettle/sendportal/issues/340 | exploitissue-tracking |
| https://github.com/mettle/sendportal/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mettle | sendportal |
Affected:
3.0.0
Affected: 3.0.1 cpe:2.3:a:mettle:sendportal:*:*:*:*:*:*:*:* |
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CVE-2026-14714 (GCVE-0-2026-14714)
Vulnerability from cvelistv5 – Published: 2026-07-05 05:30 – Updated: 2026-07-06 18:20 X_Open Source
VLAI
EPSS
VEX
Title
zhayujie chatgpt-on-wechat CowAgent wx Endpoint common.py verify_server missing authentication
Summary
A weakness has been identified in zhayujie chatgpt-on-wechat CowAgent 2.1.0. This issue affects the function verify_server of the file channel/wechatmp/common.py of the component wx Endpoint. This manipulation of the argument wechatmp_token causes missing authentication. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2.1.1 is capable of addressing this issue. Patch name: 3d7c68bac6ee74fad63f43cf99e45c62e202ed55. It is suggested to upgrade the affected component. The project confirms: "We've added an explicit non-empty check for wechatmp_token in verify_server() so that the /wx endpoint now fails closed with 403 Forbidden whenever the token is missing or left at the default empty value, instead of relying on a signature check that silently degenerates to a predictable hash."
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 18:19 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/376304 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/376304/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-14714 | third-party-advisory |
| https://vuldb.com/submit/847484 | third-party-advisory |
| https://github.com/zhayujie/CowAgent/issues/2860 | exploitissue-tracking |
| https://github.com/zhayujie/CowAgent/commit/3d7c6… | patch |
| https://github.com/zhayujie/CowAgent/releases/tag/2.1.1 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zhayujie | chatgpt-on-wechat CowAgent |
Affected:
2.1.0
Unaffected: 2.1.1 cpe:2.3:a:zhayujie:chatgpt-on-wechat_cowagent:*:*:*:*:*:*:*:* |
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CVE-2026-14627 (GCVE-0-2026-14627)
Vulnerability from cvelistv5 – Published: 2026-07-04 12:45 – Updated: 2026-07-06 16:51
VLAI
EPSS
VEX
Title
NousResearch hermes-agent Discord Platform Integration discord.py DiscordAdapter._is_allowed_user improper authentication
Summary
A security vulnerability has been detected in NousResearch hermes-agent up to 0.15.2. This affects the function DiscordAdapter._is_allowed_user of the file gateway/platforms/discord.py of the component Discord Platform Integration. Such manipulation leads to improper authentication. The attack can be launched remotely. This attack is characterized by high complexity. The exploitability is reported as difficult. The exploit has been disclosed publicly 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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 16:36 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/376143 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/376143/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-14627 | third-party-advisory |
| https://vuldb.com/submit/845598 | third-party-advisory |
| https://gist.github.com/YLChen-007/d030c690b10a97… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NousResearch | hermes-agent |
Affected:
0.15.0
Affected: 0.15.1 Affected: 0.15.2 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:* |
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"dataVersion": "5.2"
}
Mitigation
Architecture and Design
Strategy: Libraries or Frameworks
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
CAPEC-114: Authentication Abuse
An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.
CAPEC-115: Authentication Bypass
An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.
CAPEC-151: Identity Spoofing
Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.
CAPEC-194: Fake the Source of Data
An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
CAPEC-22: Exploiting Trust in Client
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.
CAPEC-593: Session Hijacking
This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.
CAPEC-633: Token Impersonation
An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
CAPEC-94: Adversary in the Middle (AiTM)
An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.