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Vulnerabilities CVE-2026-73157

CVE-2026-73157

Low
Open
TLP:CLEAR

cti-transmute Remote MISP Event Browser Allows Cross-Site Scripting via Malicious Event Metadata

AI Analysis

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Description

Affected versions of cti-transmute render data obtained from a remote MISP instance into the event-browser interface using HTML interpolation. Because fields such as event IDs, event information, organization names, tags, tag colors, TLP labels, distribution labels, and error/flash text may be controlled by the remote MISP server, a malicious or compromised remote instance could return crafted values that inject HTML or script-capable content into the cti-transmute interface. The patch explicitly notes that remote-derived values must not reach innerHTML, and replaces string-built rows and badges with DOM nodes populated through textContent. It also restricts remote-controlled tag colors to six-digit hexadecimal values, preventing malicious CSS values such as url(...).

Details

CVSS Score
2.3
EPSS Score
0.26%

17.9th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Confidence
90%
Published
Aug 11, 2026
Last Modified
Aug 11, 2026
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