CVE-2022-0526Network attack vector

Stored XSS via unvalidated custom-attribute URLs

Published Feb 9, 2022 · Updated Aug 2, 2024

Cross-site scripting in Chatwoot before 2.2.0 allows remote authenticated users to execute script in another user's browser via custom attributes. The CustomAttribute.vue component rendered arbitrary custom-attribute values as links; the fix validates URLs before link rendering, blocking javascript-style payloads. Exploitation requires a user with permission to store a custom attribute and another user to view the affected conversation or contact, enabling script execution in that viewer's session without a service outage.

CVSS severity7.3
High
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in Chatwoot before 2.2.0 allows remote authenticated users to execute script in another user's browser via custom attributes. The CustomAttribute.vue component rendered arbitrary custom-attribute values as links; the fix validates URLs before link rendering, blocking javascript-style payloads. Exploitation requires a user with permission to store a custom attribute and another user to view the affected conversation or contact, enabling script execution in that viewer's session without a service outage.

The record

CVE
CVE-2022-0526
Published
Feb 9, 2022
Updated
Aug 2, 2024
Vendor
Chatwoot
Product
Chatwoot
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=unspecified <2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chatwoot · Chatwootversion=unspecified <2.2.0

Published CVSS scores

7.3NVDCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo