EUVD-2026-29492

LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects. On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are se...

CVE-2026-43938

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...

CVE-2026-8368

The LWP::UserAgent Perl module (versions before 6.83 ) is vulnerable to a credential leak during cross-origin redirects. In a 3xx response , the redirect handler fails to strip Authorization and Proxy-Authorization headers, sending them unchanged to the target, even across changes in scheme, host...

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...

CVE-2026-43938

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...

CVE-2026-43938

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...

CVE-2026-43938

Summary (supported): CVE-2026-43938 affects YetAnotherForum.NET (YAF.NET) prior to 4.0.5 and 3.2.12. The database logger captures the request’s User-Agent into a JSON object and stores it in EventLog.Description. When an admin views the EventLog, the code deserializes that JSON and interpolates t...

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...

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...

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...

YAFNET cross-site scripting vulnerabilities

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 security vulnerability

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...

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...

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-2026-41474

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...

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...

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...

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...

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...