CVE-2022-42960Public exploitNetwork attack vector

DOM XSS via unchecked cross-origin widget messages

Published Nov 16, 2022 · Updated Apr 30, 2025

DOM XSS in affected EqualWeb Accessibility Widget versions allows remote attackers to execute JavaScript through cross-origin messages. The accessibility.js message listener accepts any origin, lets the payload select getBlock, and passes attacker-controlled optName HTML to a jQuery selector for evaluation. A victim must browse a malicious page while the widget is loaded; injected code runs in the widget-bearing site's origin, enabling session-data theft or actions as the user.

CVSS severity5.4
Medium
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

DOM XSS in affected EqualWeb Accessibility Widget versions allows remote attackers to execute JavaScript through cross-origin messages. The accessibility.js message listener accepts any origin, lets the payload select getBlock, and passes attacker-controlled optName HTML to a jQuery selector for evaluation. A victim must browse a malicious page while the widget is loaded; injected code runs in the widget-bearing site's origin, enabling session-data theft or actions as the user.

The record

CVE
CVE-2022-42960
Published
Nov 16, 2022
Updated
Apr 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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

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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