CVE-2024-27443 Details
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0. A Cross-Site Scripting (XSS) vulnerability exists in the CalendarInvite feature of the Zimbra webmail classic user interface, because of improper input validation in the handling of the calendar header. An attacker can exploit this via an email message containing a crafted calendar header with an embedded XSS payload. When a victim views this message in the Zimbra webmail classic interface, the payload is executed in the context of the victim's session, potentially leading to execution of arbitrary JavaScript code.
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Exploit prediction scoring system (EPSS) score for CVE-2024-27443
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%).
32.29 Probability of exploitation activity being observed over the next 30 days (97th percentile)
CVSS score for CVE-2024-27443
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-2024-27443

CVE-2024-27443 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
RU 71 15.74%
HK 45 9.98%
TL 33 7.32%
US 32 7.10%
VN 26 5.76%
FR 23 5.10%
ID 15 3.33%
EC 15 3.33%
IT 10 2.22%
DE 10 2.22%

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CVE-2024-27443 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
Technology 100 41.84%
Telecommunications 96 40.17%
Government/Politics 15 6.28%
Business Services 9 3.77%
Education 5 2.09%
Manufacturing 4 1.67%
Aerospace/Defense 3 1.26%
Energy/Resources 3 1.26%
Healthcare/Wellness 2 0.84%
Finance 1 0.42%

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