JumpServer - Open Redirect via Referer Header

JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v3.10.19 and v4.10.5, The /core/i18n// endpoint uses the Referer header as the redirection target without proper validation, which could lead to an Open Redirect vulnerability. id:...

Zimbra Collaboration - Cross-Site Scripting (XSS)

An issue was discovered in Zimbra Collaboration ZCS 9.0 and 10.0. A Cross-Site Scripting XSS vulnerability exists in the CalendarInvite feature of the Zimbra webmail classic user interface, because of improper input validation in the handling of the calendar header. An attacker can exploit this v...

ZZcms - Cross-Site Scripting

ZZcms 2019 contains a cross-site scripting vulnerability in the user login page. An attacker can inject arbitrary JavaScript code in the referer header via user/login.php, which can allow theft of cookie-based credentials and launch of subsequent attacks. id: CVE-2020-20285 info: name: ZZcms -...

Starlette - Improper Validation of Unsafe Equivalence in Input

A flaw was found in Starlette, a lightweight ASGI Asynchronous Server Gateway Interface framework. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP Host request header. This malformed header could cause the request.url to be incorrectly reconstructed, leading...

Apache Tomcat - HTTP Request Smuggling

Apache Tomcat from versions 8.5.0 to 8.5.93, 9.0.0-M1 to 9.0.81, 10.1.0-M1 to 10.1.13, and 11.0.0-M1 to 11.0.0-M11 contain an improper input validation caused by incorrect parsing of HTTP trailer headers, letting attackers craft headers to cause request smuggling, exploit requires sending malicio...

OpenBullet2 <= 0.3.2 - Authentication Bypass

OpenBullet2 = 0.3.2 contains an authentication bypass caused by improper API key authentication middleware handling empty X-Api-Key header, letting unauthenticated attackers gain admin access, exploit requires sending empty X-Api-Key header. id: CVE-2026-25555 info: name: OpenBullet2 = 0.3.2 -...

Astro SSR - Server-Side Request Forgery

Astro before 5.17.3 and @astrojs/node before 9.5.4 are vulnerable to full-read SSRF due to improper Host header validation in error page rendering, allowing attackers to redirect requests and access internal resources. id: CVE-2026-25545 info: name: Astro SSR - Server-Side Request Forgery author:...

Zimbra Collaboration Suite - Cross-site Scripting

Cross-site scripting XSS vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite ZCS before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment. id:...

Header Footer Code Manager < 1.1.14 - Admin+ SQL Injection

The Header Footer Code Manager WordPress plugin before 1.1.14 does not validate and escape the "orderby" and "order" request parameters before using them in a SQL statement when viewing the Snippets admin dashboard, leading to SQL injections id: CVE-2021-24791 info: name: Header Footer Code Manag...

esm.sh <= v136 - Arbitrary File Write via Path Traversal

esm.sh = 136 contains a path traversal caused by improper canonicalization of the X-Zone-Id HTTP header, letting attackers write files outside the intended storage directory, exploit requires crafted header input. id: CVE-2025-59342 info: name: esm.sh = v136 - Arbitrary File Write via Path...

Plone Docker - Host Header Injection

Plone Docker Official Image 5.2.13 5221 is vulnerable to Host Header Injection due to improper validation of input by the HOST headers. This can lead to Cross-Site Scripting XSS attacks when the malicious Host header value is reflected in the response. id: CVE-2024-23055 info: name: Plone Docker ...

LibreChat <= 0.7.9 - HTML Injection via Accept-Language Header

danny-avila/librechat 0.7.9 contains a stored XSS caused by improper sanitization of the Accept-Language header, letting logged-in users inject arbitrary HTML into the html lang= tag, exploit requires user to be logged in. id: CVE-2025-8848 info: name: LibreChat marker"...

ExponentCMS <= 2.6 - Host Header Injection

An HTTP Host header attack exists in ExponentCMS 2.6 and below in /exponentconstants.php. A modified HTTP header can change links on the webpage to an arbitrary value,leading to a possible attack vector for MITM. id: CVE-2021-38751 info: name: ExponentCMS = 2.6 - Host Header Injection author:...

Monstra CMS 3.0.4 - HTTP Header Injection

Monstra CMS 3.0.4 is susceptible to HTTP header injection in the plugins/captcha/crypt/cryptographp.php cfg parameter. An attacker can potentially supply invalid input and cause the server to allow redirects to attacker-controlled domains, perform cache poisoning, and/or allow improper access to...

httpd: httpd: HTTP/2 Remote Denial of Service via compression bomb and Slowloris-style attack

A flaw was found in HTTP/2, affecting various web servers. A remote attacker can exploit this vulnerability by combining an HPACK compression bomb with a zero-byte flow-control window. This technique allows a small amount of data to expand into large memory allocations on the server, which are th...

CVE-2026-45103

A flaw was found in OpenSIPS, a Session Initiation Protocol SIP server. An integer overflow vulnerability exists in the TCP message framing layer when parsing the Content-Length header. An unauthenticated, network-based attacker can exploit this by sending a crafted Content-Length value, causing...

CVE-2026-45100

OpenSIPS is a Session Initiation Protocol SIP server implementation. Versions 3.4.0-beta through 3.6.5 and 4.0.0-beta contain a buffer overflow in the s.b64encode string transformation. The size check for s.b64encode only verifies that the input fits within the 64 KB transformation buffer, but...

CVE-2026-45538

A flaw was found in OpenSIPS, a Session Initiation Protocol SIP server. An unauthenticated remote attacker can exploit a stack buffer overflow by sending a specially crafted SIP message with an overly long header name. This can cause the server to crash, leading to a denial of service. In certain...

CVE-2026-45100 OpenSIPS: Buffer Overflow in Base64 Encode Transformation

OpenSIPS is a Session Initiation Protocol SIP server implementation. Versions 3.4.0-beta through 3.6.5 and 4.0.0-beta contain a buffer overflow in the s.b64encode string transformation. The size check for s.b64encode only verifies that the input fits within the 64 KB transformation buffer, but...

CVE-2026-15157

A flaw was found in undici. An application that processes a hand-rolled blob-like request body with a type property derived from untrusted input may allow a remote attacker to inject Carriage Return Line Feed CRLF sequences. This vulnerability enables the attacker to append arbitrary HTTP headers...