CVE-2026-14820

The Quiz and Survey Master QSM WordPress plugin before 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality and returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid...

EUVD-2026-49083

The Quiz and Survey Master QSM WordPress plugin before 11.1.3 does not implement rate limiting or standard failed-login auditing on its front-end credential-check functionality and returns distinct responses for valid and invalid accounts, allowing unauthenticated attackers to enumerate valid...

Usermin 2.100 - Username Enumeration

Usermin version 2.100 and below is susceptible to username enumeration via the password change functionality. An attacker can determine valid usernames by analyzing the response messages from the password change endpoint. id: CVE-2024-44762 info: name: Usermin 2.100 - Username Enumeration author:...

AnythingLLM - Username Enumeration via Password Recovery

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to commit e287fab56089cf8fcea9ba579a3ecdeca0daa313, the password recovery endpoint returns different error messages depending on whether a username exists, so enabling...

Zoho ManageEngine ADSelfService Plus 6121 - Username Enumeration

Zoho ManageEngine ADSelfService Plus 6121 is vulnerable to username enumeration CVE-2022-28987. The Forgot Password functionality responds differently for existing and non-existing users, allowing attackers to enumerate valid usernames. id: CVE-2022-28987 info: name: Zoho ManageEngine ADSelfServi...

Pritunl VPN Server 1.29.2145.25 - Username Enumeration

Pritunl 1.29.2145.25 contains a username enumeration issue caused by different error responses in /auth/session login attempts, letting attackers verify valid usernames, exploit requires network access to the login endpoint. id: CVE-2020-25200 info: name: Pritunl VPN Server 1.29.2145.25 - Usernam...

CVE-2026-42218

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on the system, leading to unauthorized information disclosure...

CVE-2026-42218

CVE-2026-42218 affects xrdp, an open source RDP server. The issue is a timing side‑channel in the login interface of versions 0.10.6 and earlier that allows remote observers to infer whether a username exists, enabling information disclosure via username enumeration. The vulnerability is explicit...

CVE-2026-42218 XRDP is vulnerable to a server timing attack, leading to user enumeration

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on the system, leading to unauthorized information disclosure...

CVE-2026-42218

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on the system, leading to unauthorized information disclosure...

CVE-2026-54685 FileBrowser Quantum has Username Enumeration via Authentication Timing Side-Channel

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.3.2-beta, the /api/auth/login authentication endpoint does not execute in constant time. When a non-existent username is supplied, the server returns a 401/403 response almost immediately. When a valid username...

CVE-2026-54685

FileBrowser Quantum exposes a timing-side-channel in the /api/auth/login endpoint prior to version 1.3.2-beta, allowing unauthenticated users to distinguish valid usernames from invalid ones via response-time differences (bcrypt path for valid usernames). A PoC demonstrates the attack, and the is...

CVE-2026-61503 Rejetto HFS < 3.2.1 Username Enumeration via Login Response Differences

Rejetto HFS 3.0.0 through 3.2.0 returns observably different responses from its login endpoint depending on whether the submitted username exists. A remote unauthenticated attacker can use this to confirm valid account names, including the default admin account, facilitating password-guessing and...

CVE-2026-61503 Rejetto HFS < 3.2.1 Username Enumeration via Login Response Differences

Rejetto HFS 3.0.0 through 3.2.0 returns observably different responses from its login endpoint depending on whether the submitted username exists. A remote unauthenticated attacker can use this to confirm valid account names, including the default admin account, facilitating password-guessing and...

PYSEC-2026-3053 Rucio WebUI has Username Enumeration via Login Error Message

Summary The WebUI login endpoint returns distinct error messages depending on whether a supplied username exists, allowing unauthenticated attackers to enumerate valid usernames. Details When submitting invalid credentials to /ui/login, the WebUI responds with different error messages based on th...

CVE-2026-51926

An issue in docuForm GmbH FSM Client v.11.11c allows a remote attacker to obtain sensitive information via the login.php component. A vulnerability was identified in the authentication mechanism that allows user enumeration through the login interface. An attacker can differentiate between valid...

CVE-2026-51926

An issue in docuForm GmbH FSM Client v.11.11c allows a remote attacker to obtain sensitive information via the login.php component. A vulnerability was identified in the authentication mechanism that allows user enumeration through the login interface. An attacker can differentiate between valid...

CVE-2026-44332

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username...

CVE-2026-44332 Fiber: Username Enumeration via Timing Oracle in BasicAuth Default Authorizer

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username...

CVE-2026-44332

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username...