CVE-2026-55184
lowEspoCRM is an open source customer relationship management application.
EspoCRM is an open source customer relationship management application. Prior to 9.3.9, a user with Email Template or PDF Template edit permission can store crafted HTML that bypasses moderateSanitizeHtml(). When another user opens the template in edit mode and clientCspDisabled is true, the stored payload executes and can hijack the user's session. This issue is fixed in version 9.3.9.
CVSS
3.5
3.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-10-15 15:17
Modified: 2026-10-15 16:18
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-27 07:03 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/espocrm/espocrm/commit/67223bfb82338c030f38dac03f12c73b7b3d760f security-advisories@github.com
- https://github.com/espocrm/espocrm/releases/tag/9.3.9 security-advisories@github.com
- https://github.com/espocrm/espocrm/security/advisories/GHSA-x5p5-8mxj-9wv6 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗