CVE-2026-25940
Description
A flaw was found in jsPDF. The properties and methods of the Acroform module accept user input without sanitization, allowing an attacker to inject arbitrary PDF objects, such as JavaScript actions. Specifically, if an attacker can supply a specially crafted input to the AcroformChildClass.appearanceState property, JavaScript actions can be executed when a user opens the generated PDF document and hovers over the radio button.
Statement
To exploit this flaw, an attacker must be able to supply a specially crafted input to the AcroformChildClass.appearanceState property of the Acroform module and convince a user to open the generated PDF document, resulting in arbitrary JavaScript execution when the user interacts with radio buttons. Due to these reasons, this vulnerability has been rated with an important severity.
Mitigation
To mitigate this vulnerability, sanitize the user-provided input before passing it to the AcroformChildClass.appearanceState property or other API members. Additionally, do not open PDF documents from untrusted sources.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 9.6 | N/A | 9.6 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Changed | N/A | Changed |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Application Data
The communications between components can be modified in unexpected ways. Unexpected commands can be executed, bypassing other security mechanisms. Incoming data can be misinterpreted.
Integrity,Confidentiality,Availability,Access Control
Technical Impact: Execute Unauthorized Code or Commands
The communications between components can be modified in unexpected ways. Unexpected commands can be executed, bypassing other security mechanisms. Incoming data can be misinterpreted.
Confidentiality
Technical Impact: Bypass Protection Mechanism
The communications between components can be modified in unexpected ways. Unexpected commands can be executed, bypassing other security mechanisms. Incoming data can be misinterpreted.
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