CVE-2025-66376

HIGHCISA KEV

7.2

Description

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.

Details CVE

Score CVSS v3.17.2

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/5/2026

Derniere modification3/18/2026

Sourcekev

Observations honeypot0

CISA KEV

FournisseurSynacor

ProduitZimbra Collaboration Suite (ZCS)

Nom vulnerabiliteSynacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability

Date ajout KEV2026-03-18

Date limite remediation2026-04-01

Utilise dans ransomwareUnknown

Produits affectes

synacor:zimbra_collaboration_suite

Faiblesses (CWE)

CWE-79

References

https://wiki.zimbra.com/wiki/Security_Center(cve@mitre.org)

https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.18#Security_Fixes(cve@mitre.org)

https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.13#Security_Fixes(cve@mitre.org)

https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy(cve@mitre.org)

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories(cve@mitre.org)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-66376(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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