CRITICALCVSS 9.0Actively exploited · CISA KEV since 2025-02-25Vulnerability

CVE-2023-34192

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting (XSS) vulnerability that allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function.

Properties

Vulnerability name
Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
First seen
2025-10-21T23:05:44+00:00
Cvss score
9
Epss score
0.77266
Last seen
2026-10-19T12:00:27+00:00
Due date
2025-03-18
Euvd assigner
mitre
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2025-02-25T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2025-02-25
Score
9
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
9
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Vendor project
Synacor

Related Entities (44 · showing 23)

AFFECTS_PRODUCT (41 · showing 20)

→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p6:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p5:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p7:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p36:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p4:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p8:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p9:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p32:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p37:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p39:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p34:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p38:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p35:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p33:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p29:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p3:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p15:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:-:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p21:*:*:*:*:*:*
→[Product]cpe:2.3:a:synacor:zimbra_collaboration_suite:8.8.15:p17:*:*:*:*:*:*

DESCRIBES (1)

←[KEVEntry]Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability

HAS_WEAKNESS (1)

→[Weakness]Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

INVOLVES (1)

←[Signal]kev_added · 2025-02-25

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CVE-2023-34192 (CVSS 9) — Ninja Signal Threat Intelligence | Ninja Signal