CVE-2026-59994: medium-severity vulnerability in espocrm
EspoCRM: Pre-authentication stored HTML injection in stream notification emails about email received
Published · Updated
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.3%
exploitation probability
0.3%top 72% of all CVEs
observed exploitation
nono source reports it
EspoCRM is an open source customer relationship management application. Prior to 9.3.9, an unauthenticated remote attacker can send an email to a monitored group or IMAP address, including an email-to-Case address, and place arbitrary HTML in its plain-text body. EspoCRM stores that body and renders it without escaping in Email Received stream notification emails sent to users following the related record, allowing HTML injection and, in mail clients that execute it, JavaScript execution. Earlier sanitization for Post and Mention notifications did not cover this notification path. This issue is fixed in version 9.3.9.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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%