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

CVE-2024-27443 Unknown In-The-Wild Exploited

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Ringkasan Kerentanan (Vulnerability Overview)

Rilis: 01 October 2026

Zimbra Collaboration contains a cross-site scripting (XSS) vulnerability in the CalendarInvite feature of the Zimbra webmail classic user interface. An attacker can exploit this vulnerability via an email message containing a crafted calendar header, leading to the execution of arbitrary JavaScript code.

Tindakan Mitigasi yang Wajib Diterapkan (Required Action)

Instruksi Keamanan untuk Pengelola TI / OPD

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

Seluruh pengelola server dan aplikasi di lingkungan OPD Kabupaten Ciamis diimbau untuk segera mengaudit perangkat terdampak dan mengaplikasikan patch sebelum batas waktu mitigasi.

Produk & Versi Terdampak

Produk	Versi Basis	Batas Terdampak	Status Keamanan
n/a	n/a	—	AFFECTED

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Threat Intelligence Matrix

CVE Identifier

CVE-2024-27443

Vendor / Project Synacor

Produk Terdampak Zimbra Collaboration Suite (ZCS)

Skor CVSS

N/A / 10.0

Status Eksploitasi AKTIF (In-The-Wild)

Kampanye Ransomware Tidak Diketahui

Automatable (Wormable) Unknown

Dampak Teknis Total

Sumber Intelijen CISA KEV

Butuh Pendampingan Mitigasi?

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Peringatan Lainnya

CVE-2026-17544 High

Out-of-bounds write in bccomp() via crafted operand and scale

CVE-2026-17543 High

SQL injection in ext-pgsql via E'...' backslash breakout

CVE-2026-7260 Medium

Stack overflow in phar with circular symlinks

CVE-2026-109619 Critical

RCE via stale global state

CSIRT Assistant

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