CVE-2026-33741: medium-severity vulnerability in espocrm
EspoCRM: Stored XSS via SVG attachment loading same-origin JavaScript
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.2%
EspoCRM is an open source customer relationship management application. Versions 9.3.3 and below allow authenticated users to upload SVG attachments through normal attachment-capable fields and later serve those SVG files as top-level inline documents through both the attachment and image entry points, resulting in stored cross-user XSS reachable through a normal attachment workflow. Although inline SVG script is blocked by the response CSP, the same CSP still allows same-origin external script. As a result, an attacker can upload a malicious SVG together with a second attacker-controlled JavaScript attachment, then trick another user into opening the SVG to execute JavaScript in the victim's EspoCRM origin. This issue has been fixed in version 9.3.4.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Affected products
espocrm · espocrmRelated CVEs — espocrm
In the same product, most dangerous first.
CVE-2026-33534MEDIUMEspoCRM has authenticated SSRF via internal-host validation bypass using alternative IPv4 notationEPSS 2.0%CVE-2025-52575MEDIUMEspoCRM vulnerable to LDAP Injection through Improper Neutralization of Special ElementsEPSS 0.8%CVE-2024-24818MEDIUMEspoCRM weakness in "Forgot password"EPSS 0.6%CVE-2026-33656CRITICALEspoCRM vulnerable to authenticated RCE via Formula with path traversal in attachment `sourceId`, exploitable by admin userEPSS 0.5%CVE-2026-33733HIGHEspoCRM has Admin TemplateManager path traversal that allows arbitrary file read write and deleteEPSS 0.4%CVE-2025-32789LOWEspoCRM Allows Potential Disclosure of Sensitive Information in the User Sorting FunctionEPSS 0.4%