CVE-2026-73572 Details
In Zimbra Collaboration (ZCS) before 10.1.17, a stored cross-site scripting (XSS) vulnerability exists in the Zimbra Classic Web Client due to insufficient sanitization of specific attachment content during inline preview. An attacker can send a crafted email containing a malicious attachment that, when previewed by a user, executes arbitrary JavaScript within the victim's browser session. Successful exploitation may allow an attacker to perform unauthorized actions on behalf of the victim user, potentially leading to data exfiltration or unauthorized access to sensitive information.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-73572
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.16 Probability of exploitation activity being observed over the next 30 days (5th percentile)
CVSS score for CVE-2026-73572
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
6.1 Medium
Products affected by CVE-2026-73572
Zimbra Collaboration Suite 8.8.15
Zimbra Collaboration Suite 8.8.6
Zimbra Collaboration Suite 8.8.8
Zimbra Collaboration Suite 8.8.9
Zimbra Collaboration Suite 9.0.0
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-73572 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
ID 624 9.56%
RU 571 8.75%
US 478 7.33%
BR 438 6.71%
VN 328 5.03%
DE 297 4.55%
IN 264 4.05%
FR 257 3.94%
IT 195 2.99%
BD 178 2.73%

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CVE-2026-73572 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 1,523 47.20%
Technology 1,379 42.73%
Government/Politics 103 3.19%
Business Services 50 1.55%
Education 42 1.30%
Transportation 21 0.65%
Energy/Resources 15 0.46%
Engineering 14 0.43%
Finance 10 0.31%
Media/Entertainment 9 0.28%

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