CVE-2026-39328Public exploitNetwork attack vector

Session hijacking via unescaped social profile fields

Published Apr 7, 2026 · Updated Apr 7, 2026

Stored XSS in ChurchCRM before 7.1.0 allows remote authenticated users with EditSelf permission to steal profile viewers' session cookies. PersonView.php renders stored Facebook, LinkedIn, and X values into HTML attributes without escaping quotes after sanitizeText removes only tags. A victim must view the attacker's profile; chained autofocus and onfocus handlers then exfiltrate the victim's cookie and enable session impersonation.

CVSS severity8.9
High
EPSS probability0.20%
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 ChurchCRM before 7.1.0 allows remote authenticated users with EditSelf permission to steal profile viewers' session cookies. PersonView.php renders stored Facebook, LinkedIn, and X values into HTML attributes without escaping quotes after sanitizeText removes only tags. A victim must view the attacker's profile; chained autofocus and onfocus handlers then exfiltrate the victim's cookie and enable session impersonation.

The record

CVE
CVE-2026-39328
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
ChurchCRM
Product
ChurchCRM
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 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=< 7.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ChurchCRM · ChurchCRMversion=< 7.1.0

Published CVSS scores

8.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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