CVE-2026-39338
MEDIUMChurchCRM has Blind XSS via Global Search – Administrative Cookie Session Exfiltration
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-39338. PoCs published by HackinKraken.
AI-analyzed exploit summary The repository provides a technical writeup detailing the discovery of CVE-2026-39338, a Blind XSS vulnerability in ChurchCRM's Global Search feature. The author describes how JavaScript executed on the backend despite frontend errors, leading to session cookie exfiltration.
Description
ChurchCRM is an open-source church management system. Prior to 7.1.0, a Blind Reflected Cross-Site Scripting vulnerability exists in the search parameter accepted by the ChurchCRM dashboard. The application fails to sanitize or encode user-supplied input prior to rendering it within the browser's DOM. Although the application ultimately returns an HTTP 500 error due to the malformed API request caused by the payload, the browser's JavaScript engine parses and executes the injected <script> tags before the error response is returned — resulting in successful code execution regardless of the server-side error. This vulnerability is fixed in 7.1.0.
Exploits (1)
The repository provides a technical writeup detailing the discovery of CVE-2026-39338, a Blind XSS vulnerability in ChurchCRM's Global Search feature. The author describes how JavaScript executed on the backend despite frontend errors, leading to session cookie exfiltration.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N