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CVE-2024-27443

medium · 6.1Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

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

Added 2025-05-19Remediation due 2025-06-09

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →

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.

6.1
CVSS
23.6%
EPSS (exploit prob.)
98th
EPSS percentile
2024-08-12
Published

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

Weaknesses

CWE-79

Affected products

VendorProductAffected versions
zimbracollaboration>= 10.0.0, < 10.0.7
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0
zimbracollaboration9.0.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2024-27443