CVE-2026-22787Public exploitNetwork attack vector

Client-side script execution via unsanitized text source

Published Jan 14, 2026 · Updated Jan 14, 2026

Cross-site scripting in html2pdf.js before 0.14.0 allows remote attackers to execute scripts through a crafted text source. Worker.prototype.from passes string input to createElement, whose innerHTML assignment removes script elements but leaves event handlers active before DOM attachment. Exploitation requires an application to accept attacker-controlled text and a browser user to trigger PDF generation; code runs in the page's origin.

CVSS severity8.7
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in html2pdf.js before 0.14.0 allows remote attackers to execute scripts through a crafted text source. Worker.prototype.from passes string input to createElement, whose innerHTML assignment removes script elements but leaves event handlers active before DOM attachment. Exploitation requires an application to accept attacker-controlled text and a browser user to trigger PDF generation; code runs in the page's origin.

The record

CVE
CVE-2026-22787
Published
Jan 14, 2026
Updated
Jan 14, 2026
Vendor
Erik Koopmans
Product
html2pdf.js
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.14.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Erik Koopmans · html2pdf.jsversion=< 0.14.0

Published CVSS scores

8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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