CVE-2025-48700

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.017 · 77 %ileEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

1.71% (77th) EPSS

CVSS 6.1 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2026-04-20remediate by 2026-04-23

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

EPSS · scored 2026-10-23

Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0 and 10.0 and 10.1. A Cross-Site Scripting (XSS) vulnerability in the Zimbra Classic UI allows attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information. This issue arises from insufficient sanitization of HTML content, specifically involving crafted tag structures and attribute values that include an @import directive and other script injection vectors. The vulnerability is triggered when a user views a crafted e-mail message in the Classic UI, requiring no additional user interaction.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · ENISA EU

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondaryexploitability 2.8 · impact 2.7

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79US

affected products (9)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Zimbra Inc. Zimbra Collaboration Suite≤ 10.1.4fstec_bduRU
Zimbra Inc. Zimbra Collaboration Suite≤ 10.0.12fstec_bduRU
Zimbra Inc. Zimbra Collaboration Suite≤ 8.8.15 Patch 47fstec_bduRU
Zimbra Inc. Zimbra Collaboration Suite≤ 9.0.0 Patch 43fstec_bduRU
synacor zimbra collaboration suite10.0.0 → 10.0.12nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra collaboration suite10.1.0 → 10.1.4nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra collaboration suite= 8.8.15nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*
synacor zimbra collaboration suite= 9.0.0nvdUScpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2025-06-23modified 2026-06-17

references (11)

External citations — patches, advisories, analysis.

scry

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