Zimbra Collaboration

CVE-2025-66376
HIGH 7.2CISA KEV ↗Exploited per ENISA since 2026-03-18

At a glance

Source
NVD
EPSS
EPSS 20.23 % · percentile 97 ()
State
PUBLISHED
Published
Updated
Assigner
mitre
NVD status
Analyzed

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.

Weaknesses (CWE)

  • CWE-79 — Improper Neutralization of Input During Web Page Generation

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:Nmitre
CVSS 3.1HIGH 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NNVD · cve@mitre.org (Secondary)
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Zimbra · Collaborationaffected 10.0 < 10.0.18 ; affected 10.1 < 10.1.13

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
CISA Known Exploited VulnerabilitiesCC0 1.0
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD