Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-16770— PDF::WebKit versions through 1.2 for Perl allow argument injection into wkhtmltopdf via meta tags in the source document

Quick assessment

Affected
MITHALDU PDF::WebKit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Philip Garrett PDF::WebKit是Philip Garrett个人开发者的一个将HTML转换为PDF的组件。 Philip Garrett PDF::WebKit 1.2及之前版本存在命令注入漏洞，该漏洞源于源文档中的meta标签导致参数注入，可能导致攻击者控制渲染器选项并覆盖应用程序设置，读取本地文件或写入指定路径。

AI Predicted 8.1 Difficulty: Easy EPSS 0.73% · P54

Affected Version Matrix 1

VendorProduct Version RangeStatus
MITHALDU PDF::WebKit ≤ 1.2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-16770

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
PDF::WebKit versions through 1.2 for Perl allow argument injection into wkhtmltopdf via meta tags in the source document
Source: CVE Program / CVE List V5
Vulnerability Description
PDF::WebKit versions through 1.2 for Perl allow argument injection into wkhtmltopdf via meta tags in the source document. For an HTML string or file source, the constructor collects every <meta name="pdf-webkit-KEY" content="VALUE"> element in the document head through _pdf_webkit_meta_tags and turns each one into a wkhtmltopdf command line option. KEY is normalized to an option name matching --[a-z0-9-]+ but is not checked against an allow list, VALUE is passed through unchanged as the argument that follows it, and a VALUE of "yes" emits the option as a bare flag. BUILD merges the meta derived options last, so they also override the module defaults and the options passed to new. Switches such as --enable-local-file-access and --cookie-jar are reachable this way. The renderer is executed with an argument list rather than a shell command, so this is argument injection and not shell injection. Any caller that renders untrusted HTML lets the document choose the renderer's options and override those set by the application, including options that read local files into the resulting PDF or write to a chosen path. A URL source is not scanned, and the scan is skipped when XML::LibXML, a recommended dependency, is not installed.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Philip Garrett PDF::WebKit 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Philip Garrett PDF::WebKit是Philip Garrett个人开发者的一个将HTML转换为PDF的组件。 Philip Garrett PDF::WebKit 1.2及之前版本存在命令注入漏洞，该漏洞源于源文档中的meta标签导致参数注入，可能导致攻击者控制渲染器选项并覆盖应用程序设置，读取本地文件或写入指定路径。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MITHALDU PDF::WebKit 0 ~ 1.2 -

II. Public POCs for CVE-2026-16770

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-16770

请登录查看更多情报信息。

Proof of Concept for CVE-2026-16770 (1)

Vendor Pages for CVE-2026-16770 (1)

Other References for CVE-2026-16770 (1)

IV. Related Vulnerabilities

Same product: PDF::WebKit
Same vendor: MITHALDU
Same weakness: CWE-88