CVE-2026-53575 Details
Description
EspoCRM is an open source customer relationship management application. Prior to 9.3.9, an authenticated administrator can place crafted content in the applicationName setting through CSP nonce injection. The persistent injection is inserted into the main application page without escaping, allowing attacker-controlled JavaScript to run in users' sessions and leak page data, including unsaved user input. This issue is fixed in version 9.3.9.
A persistent cross-site scripting vulnerability has been identified in EspoCRM, an open-source customer relationship management application, in versions prior to 9.3.9. The issue allows authenticated administrators to inject malicious JavaScript into the applicationName setting via Content Security Policy (CSP) nonce injection. This injected script is executed in the context of the user's session, potentially leading to data leakage, including unsaved user input. The vulnerability arises from the lack of proper escaping when the applicationName is rendered on the main application page.
Users can upgrade to EspoCRM version 9.3.9 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 15, 2026CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/espocrm/espocrm/commit/ce73338ea7b463914e1271f16f8f73131ace886f | [email protected] | Source CodeVendor |
| https://github.com/espocrm/espocrm/releases/tag/9.3.9 | [email protected] | Release NotesVendor |
| https://github.com/espocrm/espocrm/security/advisories/GHSA-f34h-xxmv-j9xp | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| EspoCRM | <= 9.3.8 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2026 | New CVE Received | [email protected] |