CVE-2025-66376

Katalog CVE

CVSS 6.1 · Medium KEV · sudah dieksploitasi EPSS 20,2%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada synacor zimbra collaboration suite. Skor CVSS 3.1 6.1 (Medium) menurut NVD. Masuk katalog KEV CISA pada 18 Maret 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

5 Januari 2026

Terakhir diubah

7 Oktober 2026

Status NVD

Analyzed

CVSS 3.1

6.1 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

20,2% peluang dieksploitasi; lebih tinggi dari 97,4% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability

Masuk KEV

18 Maret 2026

Tenggat CISA

1 April 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://wiki.zimbra.com/wiki/Security_Center release notes · advisory vendor
• https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-66376 pemerintah AS
• https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.18#Security_Fixes release notes
• https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.13#Security_Fixes release notes
• https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy product