CVE-2026-43938 YAF.NET: Unauthenticated Stored Second-Order XSS in Admin Event Log via Reflected `User-Agent` Header

YetAnotherForum.NET YAF.NET is a C ASP.NET forum. Prior to 4.0.5 and 3.2.12, the application's database logger YAFNET.Core/Logger/DbLogger.cs captures the incoming request's User-Agent header into a JObject, serializes it with JsonConvert, and stores the result in the EventLog.Description column...

YAFNET 跨站脚本漏洞

YAFNET is an ASP.NET open-source forum solution developed by YAFNET’s developers. Versions of YAFNET prior to 4.0.5 and 3.2.12 contained a cross-site scripting vulnerability. This vulnerability stemmed from the database logging mechanism serializing user agent headers as JSON without encoding the...

LWP::UserAgent 安全漏洞

LWP::UserAgent is a web user agent class open source from libwww-perl, used for sending HTTP requests. Versions of LWP::UserAgent prior to version 6.83 have security vulnerabilities. These vulnerabilities stem from improper handling of the Authorization and Proxy-Authorization headers during...

CVE-2026-43938: Improper Neutralization of Input During Web Page Generation

YetAnotherForum.NET YAF.NET is a C ASP.NET forum. Prior to 4.0.5 and 3.2.12, the application's database logger YAFNET.Core/Logger/DbLogger.cs captures the incoming request's User-Agent header into a JObject, serializes it with JsonConvert, and stores the result in the EventLog.Description column...

phpMyFAQ has unauthenticated SQL injection via User-Agent header in BuiltinCaptcha

Summary BuiltinCaptcha::garbageCollector and BuiltinCaptcha::saveCaptcha at phpmyfaq/src/phpMyFAQ/Captcha/BuiltinCaptcha.php:298 and :330 interpolate the User-Agent header and client IP address into DELETE and INSERT queries with sprintf and no escaping. Both methods run on every hit to the publi...

GHSA-289F-FQ7W-6Q2W phpMyFAQ has unauthenticated SQL injection via User-Agent header in BuiltinCaptcha

Summary BuiltinCaptcha::garbageCollector and BuiltinCaptcha::saveCaptcha at phpmyfaq/src/phpMyFAQ/Captcha/BuiltinCaptcha.php:298 and :330 interpolate the User-Agent header and client IP address into DELETE and INSERT queries with sprintf and no escaping. Both methods run on every hit to the publi...

PT-2026-41366

Name of the Vulnerable Software and Affected Versions phpMyFAQ versions prior to 4.1.2 Description An unauthenticated SQL injection exists in the BuiltinCaptcha::garbageCollector and BuiltinCaptcha::saveCaptcha methods. The issue occurs when unsanitized User-Agent headers are interpolated into...

GHSA-33GV-FC78-QGF5 YAFNET has Unauthenticated Stored Second-Order XSS in Admin Event Log via Reflected `User-Agent` Header

Description: Stored second-order Cross-Site Scripting XSS occurs when attacker-controlled input is persisted through one component of an application and later rendered, without proper sanitization or contextual output encoding, by a completely different component — often one that implicitly trust...

YAFNET has Unauthenticated Stored Second-Order XSS in Admin Event Log via Reflected `User-Agent` Header

Description: Stored second-order Cross-Site Scripting XSS occurs when attacker-controlled input is persisted through one component of an application and later rendered, without proper sanitization or contextual output encoding, by a completely different component — often one that implicitly trust...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the User-Agent header being logged and later rendered in the admin event log interface without proper output encoding. An attacker can execute arbitrary JavaScript in an administrator's browser by submitting...

PT-2026-37309

Name of the Vulnerable Software and Affected Versions YetAnotherForum.NET YAF.NET versions prior to 4.0.5 YetAnotherForum.NET YAF.NET versions prior to 3.2.12 Description Stored Cross-Site Scripting XSS occurs when attacker-controlled input is persisted and later rendered without proper...

BIT-OAUTH2-PROXY-2026-34457 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

CVE-2026-34457

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

EUVD-2026-22761

OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in authrequest Mode...

User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation via the isHealthCheckRequest function in pkg/middleware/healthcheck.go. An attacker can reach protected endpoints by sending a request with a configured health-check User-Agent, causing the middleware to treat the...

GHSA-5HVV-M4W4-GF6V OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

Impact A configuration-dependent authentication bypass exists in OAuth2 Proxy. Deployments are affected when all of the following are true: - OAuth2 Proxy is used with an authrequest-style integration for example, nginx authrequest - --ping-user-agent is set or --gcp-healthchecks is enabled In...

OAuth2 Proxy's Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

Impact A configuration-dependent authentication bypass exists in OAuth2 Proxy. Deployments are affected when all of the following are true: - OAuth2 Proxy is used with an authrequest-style integration for example, nginx authrequest - --ping-user-agent is set or --gcp-healthchecks is enabled In...

CVE-2026-34457 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...

CVE-2026-34457

CVE-2026-34457 affects OAuth2 Proxy prior to 7.15.2. In deployments using an auth_request-style integration (e.g., nginx auth_request) with either --ping-user-agent or --gcp-healthchecks enabled, any request bearing the configured health-check User-Agent is treated as authenticated, bypassing log...

CVE-2026-34457 OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an authrequest-style integration such as nginx authrequest and either...