varlib-cve-2025-66034

Exploit de fontTools varLib CVE-2025-66034 Este repositorio no introduce una nueva vulnerabilidad. Este es un exploit de prueba de concepto para CVE-2025-66034 que afecta al pipeline de generación de fuentes variables varLib de fontTools. La vulnerabilidad permite a los atacantes controlar el...

CVE-2025-66034

CVE-2025-66034 — fontTools varLib 任意文件写入 漏洞描述 fontTools 是一个用于操作字体文件的 Python 库。其 varLib 模块处理 .designspace 文件——一种 XML 格式，用于描述如何插值多个字体母版以生成可变字体。 受影响版本中存在两个弱点： 1. 未净化的输出文件名 designspace 文件中的 属性控制 varLib 将编译后的输出字体写入何处。该库在将此路径传递给文件系统前未进行任何验证或规范化。攻击者可以提供绝对路径或路径遍历序列，将输出文件写入进程具有写权限的任何位置。 2. 输出中透传的 XML 内容...

CVE-2025-66034

CVE-2025-66034 — fontTools varLib 任意ファイル書き込み → RCE fontTools.varLib の任意ファイル書き込み + XMLインジェクション脆弱性のPoCエクスプロイト HackTheBox — VarIaType でテスト済み 脆弱性 fontTools.varLib は .designspace XMLファイルを処理して可変フォントを構築します。2つの脆弱性が組み合わさり、認証前のRCEを達成します。...

CVE-2025-66034-htb-ctf

CVE-2025-66034-htb-ctf VariaType 可变字体生成器漏洞利用工具 此仓库包含针对 Hack The Box 上 VariaType 机器的专用漏洞利用工具。该漏洞利用利用了 fontTools 库或 Web 应用程序处理 .designspace XML 文件和元数据插值时的漏洞，以实现远程代码执行 RCE 。 📝 描述 该漏洞存在于字体生成过程中。通过构造恶意的 designspace 文件，我们可以将 PHP 反向 shell 载荷注入到字体的元数据中（特别是 字段）。当服务器处理这些文件以生成可变字体时，它会将输出写入用户定义的路径，从而允许我们将 .p...

PYSEC-2026-1389 fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib

Summary The fonttools varLib or python3 -m fontTools.varLib script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The vulnerability affects the main code path of fontTools.varLib, used by the fonttools varLib CLI and...

Exploit for XML Injection (aka Blind XPath Injection) in Fonttools

CVE-2025-66034-htb-ctf VariaType Variable Font Generator Ex...

Advisory ROSA-SA-2026-3220

Software: fonttools 4.49.0 WASP: ROSA-CHROME unaffected versions = fonttools-4.49.0-2 affected versions fonttools-4.49.0-2 CVE-ID: CVE-2025-66034 BDU-ID: None CVE-Crit: MEDIUM CVE-DESC.: Arbitrary file write vulnerability in fontTools varLib allows a remote attacker to execute arbitrary code when...

Exploit for XML Injection (aka Blind XPath Injection) in Fonttools

fontvarlib.py — CVE-2025-66034 fontTools varLib — Arbi...

Exploit for XML Injection (aka Blind XPath Injection) in Fonttools

fontTools varLib CVE-2025-66034 Exploit...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to an XML Injection in fonttools [CVE-2025-66034]

Summary IBM Watson Speech Services Cartridge is vulnerable to an XML Injection in fonttools, an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed CVE-2025-66034. fontTools is used in our service runtimes. This vulnerabilitiy has...

TencentOS Server 4: fonttools (TSSA-2025:0963)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2025:0963 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

Arbitrary File Write

fontTools is vulnerable to an arbitrary file write. The vulnerability is due to improper handling of malicious .designspace files in the fontTools.varLib module, which allows an attacker to achieve remote code execution by writing arbitrary files when processed...

USN-7917-1: fontTools vulnerabilities

It was discovered that the subsetting module of fontTools was vulnerable to an XML External Entity XEE attack. An unauthenticated remote attacker could possibly use this issue to include arbitrary files from the file system or make web requests from the host system. This issue only affected Ubunt...

CVE-2025-66034

This vulnerability in fontTools varLib allows a crafted .designspace file to trigger arbitrary file writes and XML-based content injection during variable-font generation. Because filenames are not sanitized, an attacker can use path traversal to overwrite files anywhere on the filesystem, and...

SUSE CVE-2025-66034

fontTools is a library for manipulating fonts, written in Python. In versions from 4.33.0 to before 4.60.2, the fonttools varLib or python3 -m fontTools.varLib script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The...

EUVD-2025-199882

fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib...

fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib

Summary The fonttools varLib or python3 -m fontTools.varLib script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The vulnerability affects the main code path of fontTools.varLib, used by the fonttools varLib CLI and...

GHSA-768J-98CG-P3FV fontTools is Vulnerable to Arbitrary File Write and XML injection in fontTools.varLib

Summary The fonttools varLib or python3 -m fontTools.varLib script has an arbitrary file write vulnerability that leads to remote code execution when a malicious .designspace file is processed. The vulnerability affects the main code path of fontTools.varLib, used by the fonttools varLib CLI and...

Linux Distros Unpatched Vulnerability : CVE-2025-66034

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fontTools is a library for manipulating fonts, written in Python. In versions from 4.33.0 to before 4.60.2, the fonttools varLib or python3 -m fontTools.varLib...

XML Injection

Overview fonttools is a Tools to manipulate font files Affected versions of this package are vulnerable to XML Injection via the main function in the fontTools/varLib/init.py file. An attacker can write files to the filesystem by supplying a specially crafted .designspace file. Remediation Upgrad...