CVE-2025-66376

MediumKnown Exploited

Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import…

mitre·CWE-79·Published 2026-01-05

CVSS

6.1

EPSS

0.20

KEV

Yes

Exploits

Attributed to:Void Blizzard

cve.orgen

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Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.

NVDen

176 chars

Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.

Zimbra Collaboration (ZCS) 10 anterior a 10.0.18 y 10.1 anterior a 10.1.13 permite XSS almacenado en la interfaz de usuario clásica a través de directivas @import de Hojas de Estilo en Cascada (CSS) en un mensaje de correo electrónico HTML.

CVSS metrics across sources

Version	Type	Source	Base	Exp	Impact	Vector
3.1	Primary	cve.org	7.2	—	—	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1	Primary	cve.org	7.2	—	—	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1	Primary	NVD	6.1	2.8	2.7	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1	Secondary	NVD	7.2	3.9	2.7	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N