CVE-2018-6882: synacor zimbra collaboration suite

csirt@kutim:~/threat-intel/cve/CVE-2018-6882

CVSS 6.1 · Medium KEV · sudah dieksploitasi Dipakai ransomware EPSS 29,8%

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 19 April 2022, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.

Rincian

Terbit di NVD: 27 Maret 2018
Terakhir diubah: 1 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): 29,8% peluang dieksploitasi; lebih tinggi dari 98,1% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama: Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
Masuk KEV: 19 April 2022
Tenggat CISA: 10 Mei 2022 (untuk instansi federal AS)
Ransomware: Tercatat dipakai dalam kampanye ransomware
Tindakan wajib: Apply updates per vendor instructions.

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
synacor	zimbra collaboration suite	Semua versi sebelum 8.7.0
synacor	zimbra collaboration suite	Versi 8.7.0
synacor	zimbra collaboration suite	Versi 8.8.0
synacor	zimbra collaboration suite	Versi 8.8.1
synacor	zimbra collaboration suite	Versi 8.8.2
synacor	zimbra collaboration suite	Versi 8.8.3
synacor	zimbra collaboration suite	Versi 8.8.4
synacor	zimbra collaboration suite	Versi 8.8.5
synacor	zimbra collaboration suite	Versi 8.8.6

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories advisory vendor
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6882 pemerintah AS
http://seclists.org/fulldisclosure/2018/Mar/52 mailing list · advisory pihak ketiga
http://www.securityfocus.com/archive/1/541891/100/0/threaded broken link · advisory pihak ketiga · vdb entry
https://www.securify.nl/advisory/SFY20180101/cross-site-scripting-vulnerability-in-zimbra-collaboration-suite-... exploit · advisory pihak ketiga
https://bugzilla.zimbra.com/show_bug.cgi?id=108786 broken link · issue tracking · permissions required
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.7 permissions required

Sumber: NVD · CVE.org · KEV CISA · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.