ctf-writeups-Doli1

🛡️ Doli 1 — CTF Writeup VulnHub VAPT Report For...

Exploit for Missing Authentication for Critical Function in Nginxui Nginx_Ui

CVE-2026-27944 + CVE-2026-33032 — nginx-ui Zero-Credential RCE...

Exploit for CVE-2026-40175

CVE-2026-40175 — Axios CRLF Injection / HTTP Request Smuggling...

CVE-2026-33032: Nginx UI Missing MCP Authentication

Overview On March 30, 2026, a security advisory was published for a critical vulnerability affecting Nginx UI. Nginx UI is an open-source web interface to centralize the management of Nginx configurations and SSL certificates. The critical vulnerability, CVE-2026-33032, was reported in early Marc...

nginx 1.27.2 < 1.28.3 / 1.29.x < 1.29.7 OCSP Result Bypass

The installed version of nginx is 1.27.2 prior to 1.28.3, or 1.29.x prior to 1.29.7. It is, therefore, affected by the following issue: - NGINX Plus and NGINX Open Source have a vulnerability in the ngxstreamsslmodule module due to the improper handling of revoked certificates when configured wit...

MiracleLinux 9 : nginx-1.20.1-24.el9_7.2.ML.1 (AXSA:2026-435:02)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-435:02 advisory. nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files CVE-2026-32647 NGINX: NGINX: Denial of Service or file modification...

nginx 0.5.13 < 1.28.3 / 1.29.x < 1.29.7 Buffer Overflow in ngx_http_dav_module

The installed version of nginx is 0.5.13 prior to 1.28.3, or 1.29.x prior to 1.29.7. It is, therefore, affected by the following issue: - NGINX Open Source and NGINX Plus have a vulnerability in the ngxhttpdavmodule module that might allow an attacker to trigger a buffer overflow to the NGINX...

nginx 0.6.27 < 1.28.3 / 1.29.x < 1.29.7 SMTP Upstream Injection

The installed version of nginx is 0.6.27 prior to 1.28.3, or 1.29.x prior to 1.29.7. It is, therefore, affected by the following issue: - NGINX Plus and NGINX Open Source have a vulnerability in the ngxmailsmtpmodule module due to the improper handling of CRLF sequences in DNS responses. This...

nginx 1.1.19 < 1.28.3 / 1.29.x < 1.29.7 Multiple Vulnerabilities in ngx_http_mp4_module

The installed version of nginx is 1.1.19 prior to 1.28.3, or 1.29.x prior to 1.29.7. It is, therefore, affected by multiple vulnerabilities: - The 32-bit implementation of NGINX Open Source has a vulnerability in the ngxhttpmp4module module, which might allow an attacker to over-read or over-writ...

AlmaLinux 9 : nginx:1.26 (ALSA-2026:7343)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:7343 advisory. nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files CVE-2026-32647 NGINX: NGINX: Denial of Service or file modification via...

nginx 0.5.15 < 1.28.3 / 1.29.x < 1.29.7 NULL Pointer Dereference

The installed version of nginx is 0.5.15 prior to 1.28.3, or 1.29.x prior to 1.29.7. It is, therefore, affected by the following issue: - When the ngxmailauthhttpmodule module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue m...

NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled

A flaw was found in NGINX, specifically within the ngxmailauthhttpmodule. When this module is enabled, and CRAM-MD5 or APOP authentication is active with an authentication server that permits retries, undisclosed requests can cause NGINX worker processes to terminate. This can lead to a Denial of...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: nginx: nginx-1.30.0-1.hum1 aarch64, x8664 nginx-all-modules-1.30.0-1.hum1 noarch nginx-core-1.30.0-1.hum1 aarch64, x8664 nginx-filesystem-1.30.0-1.hum1 noarch nginx-mod-devel-1.30.0-1.hum1 aarch6...

nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files

A flaw was found in NGINX's ngxhttpmp4module. This Out-of-Bounds Read/Write vulnerability occurs due to improper handling of specially crafted MP4 files. A local authenticated attacker, by supplying a malicious MP4 file, can trigger a buffer over-read or overwrite in worker memory. This can lead ...

nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections

A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security TLS servers, An attacker with a man-in-the-middle MITM position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response...

NGINX: NGINX Plus: NGINX Open Source: NGINX Plus and NGINX Open Source: Request manipulation via header injection in SMTP upstream requests

A flaw was found in NGINX Plus and NGINX Open Source, specifically within the ngxmailsmtpmodule. This vulnerability allows an attacker-controlled DNS Domain Name System server to inject arbitrary headers into SMTP Simple Mail Transfer Protocol upstream requests. This is due to the improper handli...

nginx: NGINX ngx_mail_smtp_module vulnerability

A memory access flaw has been discovered in nginx. The ngxmailsmtpmodule might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory. As a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue occurs during th...

NGINX: NGINX: Certificate revocation bypass when OCSP is enabled

A flaw was found in NGINX, specifically within its ngxstreamsslmodule. When NGINX is configured to verify client certificates and use the Online Certificate Status Protocol OCSP for revocation checks, it fails to properly enforce the revocation status. This allows a Transport Layer Security TLS...

Actively Exploited nginx-ui Flaw (CVE-2026-33032) Enables Full Nginx Server Takeover

A recently disclosed critical security flaw impacting nginx-ui, an open-source, web-based Nginx management tool, has come under active exploitation in the wild. The vulnerability in question is CVE-2026-33032 CVSS score: 9.8, an authentication bypass vulnerability that enables threat actors to...

Decidim's comments API allows access to all commentable resources

Impact The root level commentable field in the API allows access to all commentable resources within the platform, without any permission checks. All Decidim instances are impacted that have not secured the /api endpoint. The /api endpoint is publicly available with the default configuration...