CVE-2026-73161
Affected versions of cti-transmute improperly handle conversion-table values passed through the search highlighting feature. The highlight() function previously returned the underlying text directly when no search query was supplied, or performed a regex replacement that inserted <mark> tags without first escaping the original content. Because the resulting value is used by an HTML-rendering sink, malicious markup contained in conversion data could be interpreted as HTML rather than displayed as text. The fix introduces a shared highlightMatches() helper that first converts special characters such as <, >, &, and quotes into HTML entities. Only after escaping does the code insert the application-controlled <mark> element used for search highlighting.
- Score
- CVSS 4.0 5.1 Medium
- Status
- Deferred - 5a6e4751-2f3f-4070-9419-94fb35b644e8
- Published
- 2026-08-11
- Last modified
- 2026-10-24
- Weaknesses
- CWE-116, CWE-79
Affected products
References
- https://github.com/MISP/cti-transmute/commit/ac495641ef3ca927676a73ba8f1bcdfd952413df
