CVE-2026-88859
Medium · 6.3CVSS
6.3
EPSS
0.5%
Published
Sep 10, 2026
CISA due date
—
The record
A flaw was found in Evolution. A remote attacker can exploit this vulnerability by sending a specially crafted HTML email containing a spoofed vCard control. When a victim clicks on this control, Evolution's trusted JavaScript handler incorrectly assigns an attacker-controlled JavaScript URL to an iframe's source. This action leads to arbitrary JavaScript execution within the mail-viewing context, effectively bypassing the security measures designed to prevent script execution in email content.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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