CVE-2022-42094Public exploitNetwork attack vector

Stored XSS via unneutralized Card Body markup

Published Nov 22, 2022 · Updated Apr 29, 2025

Stored XSS in Backdrop CMS 1.23.0 allows remote authenticated users to execute JavaScript when crafted Card content is viewed. The Card Body field stores attacker-controlled markup selected under the Raw HTML editor and renders it without neutralizing executable event-handler attributes. Administrative access to create the Card and select Raw HTML is required, and script execution occurs when the saved content is rendered.

CVSS severity4.8
Medium
EPSS probability2.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Backdrop CMS 1.23.0 allows remote authenticated users to execute JavaScript when crafted Card content is viewed. The Card Body field stores attacker-controlled markup selected under the Raw HTML editor and renders it without neutralizing executable event-handler attributes. Administrative access to create the Card and select Raw HTML is required, and script execution occurs when the saved content is rendered.

The record

CVE
CVE-2022-42094
Published
Nov 22, 2022
Updated
Apr 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

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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