CVE-2026-27824

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

CVE-2026-27824

CVE-2026-27824 affects calibre (Content Server) prior to version 9.4.0 where brute-force protection derives its ban key from both remote_addr and X-Forwarded-For. Because X-Forwarded-For is read directly from the HTTP request without validation or trusted-proxy checks, an attacker can bypass IP-b...

EUVD-2026-9057

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

CVE-2026-27824 calibre has IP Ban Bypass via X-Forwarded-For Header Spoofing

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

CVE-2026-27824 calibre has IP Ban Bypass via X-Forwarded-For Header Spoofing

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

CVE-2026-27824

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

CVE-2026-27824 calibre has IP Ban Bypass via X-Forwarded-For Header Spoofing

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

Calibre 访问控制错误漏洞

Calibre is an open-source, free tool developed by Kovid Goyal, a personal developer from India. It serves as a comprehensive e-book reading management and format conversion tool. Versions of Calibre prior to 9.4.0 contained a access control error vulnerability. This vulnerability stemmed from a...

Exploit for Expression Language Injection in Siemens 6Bk1602-0Aa12-0Tp0_Firmware

ButtF - Backend Misconfiguration & Logic Flaw Exploitation Too...

CVE-2026-22603

OpenProject is an open-source, web-based project management software. Prior to version 16.6.2, OpenProject’s unauthenticated password-change endpoint /account/changepassword was not protected by the same brute-force safeguards that apply to the normal login form. In affected versions, an attacker...

OpenProject 安全漏洞

OpenProject is a web-based project management software from OpenProject Open Source. A security vulnerability exists in OpenProject versions prior to 16.6.2 that stems from a lack of brute force protection in an unprotected password change endpoint, which could lead to account cracking and...

PT-2026-2223

Name of the Vulnerable Software and Affected Versions OpenProject versions prior to 16.6.2 Description OpenProject is a web-based project management software. The unauthenticated password-change endpoint, /account/change password, lacked the brute-force protection present in the standard login...

CVE-2023-45149

Nextcloud talk is a chat module for the Nextcloud server platform. In affected versions brute force protection of public talk conversation passwords can be bypassed, as there was an endpoint validating the conversation password without registering bruteforce attempts. It is recommended that the...

CVE-2024-39873

A vulnerability has been identified in SINEMA Remote Connect Server All versions V3.2 SP1. The affected application does not properly implement brute force protection against user credentials in its web API. This could allow an attacker to learn user credentials that are vulnerable to brute force...

Password Enumeration

Liferay Portal is vulnerable to password enumeration. The vulnerability is due to insufficient protection against brute-force attempts, which allows an attacker to systematically guess and determine a user’s password even when account lockout mechanisms are enabled...

CVE-2025-42615

In affected versions, vulnerability-lookup did not track or limit failed One-Time Password OTP attempts during Two-Factor Authentication 2FA verification. An attacker who already knew or guessed a valid username and password could submit an arbitrary number of OTP codes without causing the accoun...

EUVD-2025-201703

In affected versions, vulnerability-lookup did not track or limit failed One-Time Password OTP attempts during Two-Factor Authentication 2FA verification. An attacker who already knew or guessed a valid username and password could submit an arbitrary number of OTP codes without causing the accoun...

CVE-2025-59113

Windu CMS implements weak client-side brute-force protection by using parameter loginError. Information about attempt count or timeout is not stored on the server, which allows a malicious attacker to bypass this brute-force protection by resetting this parameter. Only version 4.1 was tested and...

CVE-2025-59113

Windu CMS implements weak client-side brute-force protection by using parameter loginError. Information about attempt count or timeout is not stored on the server, which allows a malicious attacker to bypass this brute-force protection by resetting this parameter. Only version 4.1 was tested and...

CVE-2025-59113

Windu CMS implements weak client-side brute-force protection by using parameter loginError. Information about attempt count or timeout is not stored on the server, which allows a malicious attacker to bypass this brute-force protection by resetting this parameter. Only version 4.1 was tested and...