Is CVE-2025-48700 in the CISA KEV catalog?

Yes. CVE-2025-48700 is on the CISA Known Exploited Vulnerabilities list, added 2026-04-20.

What is the CVSS severity of CVE-2025-48700?

CVE-2025-48700 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2025-48700?

CVE-2025-48700 has an EPSS score of 1.76% (75th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-48700

MEDIUMCISA KEVEPSS 75th pctl

6.1

CVSS v3

NVD

Description

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.

CWE-79Cross-Site Scripting (XSS)

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

1.76%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-04-23

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.