CVE-2025-48700
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
1.7%
76.0th percentile
CISA KEV
Listed
Added 2026-04-20 · patch by 2026-04-23
Weakness / dates
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Published — · modified —
Timeline
- 2026-04-20 — Added to CISA KEV (actively exploited)
- 2026-04-23 — CISA patch-by deadline
Description
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.