HIGHCVSS v3.1 8.0Vulnerability

CVE-2026-126306

EspoCRM before 9.3.11 and 10.x before 10.0.8 contains a stored cross-site scripting vulnerability that allows low-privileged users to upload crafted SVG images that submit authenticated POST requests to arbitrary backend endpoints. Attackers can trick an administrator into opening the SVG in a separate browser tab and clicking it, performing administrator actions such as elevating the attacker's account to administrator.

Properties

Severity
HIGH
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.00428
Cvss severity
HIGH
Cvss score
8
Retrieved at
2026-11-14T00:51:03+00:00
Last source
FIRST EPSS
Score
8
Cvss version
3.1
Cve id
CVE-2026-126306
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
First seen by Signal
2026-11-13T17:31:47+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published at
2026-11-13T10:17:35.973
Last modified
2026-11-13T16:18:08.963
Epss percentile
0.37531

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CVE-2026-126306 (CVSS v3.1 8) — Ninja Signal Threat Intelligence | Ninja Signal