HUSTOJ Admin users can zip-slip problem_import_qduoj.php, planting PHP files in webroot for RCE

A user with administrative privileges can abuse the problemimportqduoj.php CGI script using a crafted zip file zip-slip to traverse backwards through the filesystem, then to the webroot, where they can extract a PHP file that spawns a shell to get full RCE in the context of the webserver. Module...

📄 HUSTOJ Zip Slip / Remote Code Execution

This Metasploit module demonstrates a remote code execution vulnerability in HUSTOJ. A user with administrative privileges can abuse the problemimportqduoj.php CGI script using a crafted zip file zip-slip to traverse backwards through the filesystem, then to the webroot, where they can extract a...

PT-2026-38617

Name of the Vulnerable Software and Affected Versions FacturaScripts versions prior to 2025.81 Description An authenticated unrestricted file upload issue exists in the product image upload functionality. An attacker with valid credentials can bypass MIME type validation by prepending GIF89a magi...

CVE-2026-40611

A flaw was found in lego, the Let's Encrypt client and ACME library written in Go. A malicious ACME Automated Certificate Management Environment server can exploit a path traversal vulnerability in the webroot HTTP-01 challenge provider. By supplying a specially crafted challenge token containing...

Cross-site Request Forgery (CSRF)

Overview Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF via the put function. An attacker can overwrite or create arbitrary files in the webroot by enticing a user to visit a malicious website, which then issues crafted PUT requests through the victim's browse...

SUSE CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the Webroot HTTP-01 challenge provider. An attacker can write arbitrary files to the filesystem by supplying crafted challenge tokens containing directory traversal sequences. Details A Directory Traversal attack...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the Webroot HTTP-01 challenge provider. An attacker can write arbitrary files to the filesystem by supplying crafted challenge tokens containing directory traversal sequences. Details A Directory Traversal attack...

CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

DEBIAN-CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611 Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611 Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611

Technical details about CVE-2026-40611 are not publicly available in the provided documents; these sources confirm the vulnerability description but do not include affected versions, specifics, exploit status, or patches. Monitor for updates.

CVE-2026-40611 Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

CVE-2026-40611

Let's Encrypt client and ACME library written in Go Lego. Prior to 4.34.0, the webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to...

Lego 安全漏洞

Lego is an open-source library written in Go by go-acme. Versions of Lego before 4.34.0 have security vulnerabilities; these vulnerabilities stem from path traversal in the webroot HTTP-01 challenge provider, which could lead to arbitrary file writing and deletion...

GHSA-QQX8-2XMM-JRV8 ACME Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Summary The webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to write attacker-influenced content to any path writable by the lego...

ACME Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Summary The webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to write attacker-influenced content to any path writable by the lego...

PT-2026-33383

Name of the Vulnerable Software and Affected Versions Lego versions prior to 4.34.0 Description The webroot HTTP-01 challenge provider in Lego is subject to arbitrary file write and deletion via path traversal. A malicious ACME server can provide a crafted challenge token containing ../ sequences...

📄 Redaxo 5.20.1 Path Traversal

Redaxo versions 5.20.1 and below suffer from a path traversal vulnerability. CVE-2026-21857: Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read Overview | Field | Details | |---|---| | CVE ID | CVE-2026-21857 | | Severity | HIGH | | Advisory | View Advisory | | Discovered by...