Improper Encoding or Escaping of Output in jspdf - CVE-2026-25940
Published: April 27, 2026
Vulnerability identifier: #VU127967
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-25940
CWE-ID: CWE-116
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jelle_S
Affected software:
jspdf
jspdf
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary JavaScript.
The vulnerability exists due to improper encoding or escaping of output in the AcroForm module when processing unsanitized input for the AcroformChildClass.appearanceState property. A remote attacker can supply a specially crafted property value to execute arbitrary JavaScript.
User interaction is required when the victim hovers over the radio option in the generated PDF.
How to mitigate CVE-2026-25940
Install security update from vendor's website.