Common Weakness Enumeration

CWE-640

Allowed-with-Review

Weak Password Recovery Mechanism for Forgotten Password

Abstraction: Base · Status: Incomplete

The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.

393 vulnerabilities reference this CWE, most recent first.

CVE-2026-26273 (GCVE-0-2026-26273)

Vulnerability from cvelistv5 – Published: 2026-02-13 21:45 – Updated: 2026-02-17 20:00
VLAI
Title
Known affected by Account Takeover via Password Reset Token Leakage
Summary
Known is a social publishing platform. Prior to 1.6.3, a Critical Broken Authentication vulnerability exists in Known 1.6.2 and earlier. The application leaks the password reset token within a hidden HTML input field on the password reset page. This allows any unauthenticated attacker to retrieve the reset token for any user by simply querying the user's email, leading to full Account Takeover (ATO) without requiring access to the victim's email inbox. This vulnerability is fixed in 1.6.3.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
idno known Affected: < 1.6.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-25858 (GCVE-0-2026-25858)

Vulnerability from cvelistv5 – Published: 2026-02-07 21:45 – Updated: 2026-07-14 15:53
VLAI
Title
macrozheng mall <= 1.0.3 Unauthenticated Password Reset via OTP Disclosure
Summary
macrozheng mall version 1.0.3 and prior contains an authentication vulnerability in the mall-portal password reset workflow that allows an unauthenticated attacker to reset arbitrary user account passwords using only a victim’s telephone number. The password reset flow exposes the one-time password (OTP) directly in the API response and validates password reset requests solely by comparing the provided OTP to a value stored by telephone number, without verifying user identity or ownership of the telephone number. This enables remote account takeover of any user with a known or guessable telephone number.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
macrozheng mall Affected: 0 , ≤ 1.0.3 (semver)
Create a notification for this product.
Credits
Lennon Chia
Show details on NVD website

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CVE-2026-24467 (GCVE-0-2026-24467)

Vulnerability from cvelistv5 – Published: 2026-04-20 15:40 – Updated: 2026-04-20 16:21
VLAI
Title
OpenAEV's Improper Password Reset Token Management Leads to Unauthenticated Account Takeover and Platform Compromise
Summary
OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Starting in version 1.0.0 and prior to version 2.0.13, OpenAEV's password reset implementation contains multiple security weaknesses that together allow reliable account takeover. The primary issue is that password reset tokens do not expire. Once a token is generated, it remains valid indefinitely, even if significant time has passed or if newer tokens are issued for the same account. This allows an attacker to accumulate valid password reset tokens over time and reuse them at any point in the future to reset a victim’s password. A secondary weakness is that password reset tokens are only 8 digits long. While an 8-digit numeric token provides 100,000,000 possible combinations (which is secure enough), the ability to generate large numbers of valid tokens drastically reduces the required number of attempts to guess a valid password reset token. For example, if an attacker generates 2,000 valid tokens, the brute-force effort is reduced to approximately 50,000 attempts, which is a trivially achievable number of requests for an automated attack. (100 requests per second can mathematically find a valid password reset token in 500 seconds.) By combining these flaws, an attacker can mass-generate valid password reset tokens and then brute-force them efficiently until a match is found, allowing the attacker to reset the victim’s password to a value of their choosing. The original password is not required, and the attack can be performed entirely without authentication. This vulnerability enables full account takeover that leads to platform compromise. An unauthenticated remote attacker can reset the password of any registered user account and gain complete access without authentication. Because user email addresses are exposed to other users by design, a single guessed or observed email address is sufficient to compromise even administrator accounts with non-guessable email addresses. This design flaw results in a reliable and scalable account takeover vulnerability that affects any registered user account in the system. Note: The vulnerability does not require OpenAEV to have the email service configured. The exploit does not depend on the target email address to be a real email address. It just needs to be registered to OpenAEV. Successful exploitation allows an unauthenticated remote attacker to access sensitive data (such as the Findings section of a simulation), modify payloads executed by deployed agents to compromise all hosts where agents are installed (therefore the Scope is changed). Users should upgrade to version 2.0.13 to receive a fix.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
OpenAEV-Platform openaev Affected: >= 1.0.0, < 2.0.13
Create a notification for this product.
Show details on NVD website

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CVE-2026-15479 (GCVE-0-2026-15479)

Vulnerability from cvelistv5 – Published: 2026-07-12 05:00 – Updated: 2026-07-14 14:39
VLAI
Title
H3C NX15 Administrator Password Modification Endpoint modify change_passwd password recovery
Summary
A vulnerability was found in H3C NX15 V100R017. Affected by this vulnerability is the function change_passwd of the file /api/login/modify of the component Administrator Password Modification Endpoint. The manipulation of the argument newPass results in weak password recovery. The attack may be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/377785 vdb-entrytechnical-description
https://vuldb.com/vuln/377785/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15479 third-party-advisory
https://vuldb.com/submit/837069 third-party-advisory
https://github.com/coconut652-7/IOT_Vul_Public/tr… exploit
Impacted products
Vendor Product Version
H3C NX15 Affected: V100R017
    cpe:2.3:a:h3c:nx15:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
coconut (VulDB User) VulDB CNA Team
Show details on NVD website

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CVE-2026-15155 (GCVE-0-2026-15155)

Vulnerability from cvelistv5 – Published: 2026-07-11 05:35 – Updated: 2026-07-15 13:46
VLAI
Title
Essential Addons for Elementor <= 6.6.10 - Authenticated (Contributor+) Account Takeover via Email Header Injection
Summary
The Essential Addons for Elementor – Popular Elementor Templates & Widgets plugin for WordPress is vulnerable to Authenticated Account Takeover via Email Header Injection in all versions up to, and including, 6.6.10 This is due to insufficient server-side validation of a Login/Register widget setting used to construct outgoing email headers — the allowed-values restriction is enforced only in the client-side editor UI and not on the server, and the applied sanitization does not strip or encode CR/LF characters, allowing CRLF sequences stored in that setting to survive into raw mail headers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject an additional Bcc header into the WordPress administrator's password-reset notification email, receive a copy of a valid administrator password-reset link, and achieve full administrator account takeover.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Credits
Jonah Burgess (CryptoCat)
Show details on NVD website

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CVE-2026-13020 (GCVE-0-2026-13020)

Vulnerability from cvelistv5 – Published: 2026-07-07 16:39 – Updated: 2026-07-08 03:56
VLAI
Title
Weak Password Recovery Mechanism in Portal for ArcGIS
Summary
A Weak Password Recovery Mechanism for Forgotten Password exists in Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes. A remote, unauthorized attacker may assume ownership of a user’s account by manipulating this mechanism. ArcGIS Administrators should configure an email server with ArcGIS Enterprise to facilitate user self-service password recovery. The ability for an administrator to reset a user’s password remains unchanged.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
Esri Portal for ArcGIS Affected: 0 , < 12.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-13019 (GCVE-0-2026-13019)

Vulnerability from cvelistv5 – Published: 2026-07-07 16:40 – Updated: 2026-07-08 03:56
VLAI
Title
Missing Authentication
Summary
Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes have a missing authentication for critical function vulnerability allows a remote, unauthenticated attacker to access an unprotected API.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
Esri Portal for ArcGIS Affected: 0 , < 12.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-12417 (GCVE-0-2026-12417)

Vulnerability from cvelistv5 – Published: 2026-06-24 05:33 – Updated: 2026-06-29 19:14
VLAI
Title
SignUp & SignIn <= 1.0.0 - Unauthenticated Privilege Escalation via Weak Password Reset Validation via 'reset_activation_code' Leading to Account Takeover
Summary
The SignUp & SignIn plugin for WordPress is vulnerable to Authentication Bypass via Weak Password Reset Validation leading to Account Takeover in versions up to, and including, 1.0.0. This is due to the `pravel_change_password()` AJAX handler — registered via `wp_ajax_nopriv_pravel_change_password` and therefore accessible to unauthenticated users — performing no nonce verification, no capability check, and only a loose equality check between an attacker-supplied `reset_activation_code` POST parameter and the target user's `forgot_email` user meta value; when a user has never initiated a password reset, `get_user_meta()` returns an empty string that trivially satisfies this check against an omitted or empty attacker-supplied code. This makes it possible for unauthenticated attackers to change the password of any WordPress user, including administrators, by sending a crafted POST request to `admin-ajax.php` with `action=pravel_change_password`, `reset_user_id` set to the target account's user ID, and `new_password_custom` set to an attacker-chosen password. Successful exploitation allows the attacker to authenticate with the newly set password and fully take over the targeted account, achieving administrator-level privilege escalation on the affected site.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
pravel SignUp & SignIn Affected: 0 , ≤ 1.0.0 (semver)
Create a notification for this product.
Credits
Alyudin Nafiie
Show details on NVD website

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CVE-2026-12416 (GCVE-0-2026-12416)

Vulnerability from cvelistv5 – Published: 2026-06-24 05:33 – Updated: 2026-06-25 13:31
VLAI
Title
Invoice Generator <= 1.0.0 - Unauthenticated Account Takeover via Weak Password Reset Validation via 'reset_user_id' Parameter
Summary
The Invoice Generator plugin for WordPress is vulnerable to Account Takeover via Password Reset in all versions up to, and including, 1.0.0. This is due to the `pravel_invoice_change_password()` function being registered as a nopriv AJAX handler with no nonce verification and no authorization check, and performing a loose equality comparison between the supplied `reset_activation_code` POST parameter and the target user's stored `forgot_email` user meta — a check that trivially evaluates to true (`'' == ''`) for any user who has never initiated a forgot-password request, which applies to administrators under normal conditions. This makes it possible for unauthenticated attackers to supply an arbitrary user ID via the `reset_user_id` POST parameter, bypass the activation code check entirely by omitting `reset_activation_code`, and set the target account's password to an attacker-chosen value, enabling full takeover of any account on the site, including administrator accounts.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
Assigner
Impacted products
Vendor Product Version
pravel Invoice Generator Affected: 0 , ≤ 1.0.0 (semver)
Create a notification for this product.
Credits
Alyudin Nafiie
Show details on NVD website

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CVE-2026-12066 (GCVE-0-2026-12066)

Vulnerability from cvelistv5 – Published: 2026-06-12 13:00 – Updated: 2026-06-12 13:34
VLAI
Title
PbootCMS Password MemberController.php retrieve password recovery
Summary
A security flaw has been discovered in PbootCMS up to 3.2.12. This vulnerability affects the function retrieve of the file apps/home/controller/MemberController.php of the component Password Handler. The manipulation of the argument username/password/email/checkcode results in weak password recovery. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a PbootCMS Affected: 3.2.0
Affected: 3.2.1
Affected: 3.2.2
Affected: 3.2.3
Affected: 3.2.4
Affected: 3.2.5
Affected: 3.2.6
Affected: 3.2.7
Affected: 3.2.8
Affected: 3.2.9
Affected: 3.2.10
Affected: 3.2.11
Affected: 3.2.12
    cpe:2.3:a:pbootcms:pbootcms:*:*:*:*:*:*:*:*
Credits
yunyan05 (VulDB User)
Show details on NVD website

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Mitigation
Architecture and Design

Make sure that all input supplied by the user to the password recovery mechanism is thoroughly filtered and validated.

Mitigation
Architecture and Design

Do not use standard weak security questions and use several security questions.

Mitigation
Architecture and Design

Make sure that there is throttling on the number of incorrect answers to a security question. Disable the password recovery functionality after a certain (small) number of incorrect guesses.

Mitigation
Architecture and Design

Require that the user properly answers the security question prior to resetting their password and sending the new password to the e-mail address of record.

Mitigation
Architecture and Design

Never allow the user to control what e-mail address the new password will be sent to in the password recovery mechanism.

Mitigation
Architecture and Design

Assign a new temporary password rather than revealing the original password.

CAPEC-50: Password Recovery Exploitation

An attacker may take advantage of the application feature to help users recover their forgotten passwords in order to gain access into the system with the same privileges as the original user. Generally password recovery schemes tend to be weak and insecure.