CVE-2025-48700 — Synacor Zimbra Collaboration Suite (ZCS): Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
CVE-2025-48700 — Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that could allow attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information.
What This Means For You
- CISA has confirmed active exploitation — immediate patching required.
- Added to CISA KEV catalog — federal agencies must remediate by 2026-04-23.
Related ATT&CK Techniques
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2025-48700 | Vulnerability | CVE-2025-48700 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | CISA |
| Channel | CISA KEV |
| Channel ID | cisa-kev |
| Message ID | 202548700 |
| Published | April 20, 2026 at 15:00 UTC |
| Original Link | https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
Believe this infringes your rights? Submit a takedown request.
Related Posts
CVE-2026-5721 — Cross-Site Scripting (XSS)
CVE-2026-5721 — The wpDataTables – WordPress Data Table, Dynamic Tables & Table Charts Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all...
CVE-2026-6729 — HKUDS OpenHarness prior to PR #159 remediation contains a
CVE-2026-6729 — HKUDS OpenHarness prior to PR #159 remediation contains a session key derivation vulnerability that allows authenticated participants in shared chats or threads to...
CVE-2026-4852 — Cross-Site Scripting (XSS)
CVE-2026-4852 — The Image Source Control Lite – Show Image Credits and Captions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Image...