CVE-2022-36137Public exploitNetwork attack vector

Stored XSS via executable sHeader markup

Published Nov 29, 2022 · Updated Apr 25, 2025

Stored XSS in the sHeader custom-header setting in ChurchCRM 4.4.5 allows remote authenticated users to execute script in users' browsers. The General Settings page stores administrator-supplied HTML from sHeader and renders it at the top of application pages without restricting executable markup. Administrative settings access and a later page view are required; script runs in the viewer's ChurchCRM origin and can read or alter browser-accessible data.

CVSS severity4.8
Medium
EPSS probability0.51%
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 the sHeader custom-header setting in ChurchCRM 4.4.5 allows remote authenticated users to execute script in users' browsers. The General Settings page stores administrator-supplied HTML from sHeader and renders it at the top of application pages without restricting executable markup. Administrative settings access and a later page view are required; script runs in the viewer's ChurchCRM origin and can read or alter browser-accessible data.

The record

CVE
CVE-2022-36137
Published
Nov 29, 2022
Updated
Apr 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 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

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.

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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')

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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