Answer in brief
CVE-2026-84223 records a Medium severity (CVSS 6.8) vulnerability in Kirki 6.0.0 - 6.3.0 - Author+ Stored XSS via Unsanitized SVG Upload. The current sources do not mark it as known exploited. The current feed maps Unknown/Kirki (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Unknown/Kirki (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Unknown/Kirkigeneric | >=6.0.0 <6.3.1 | 6.3.1 |
Published upstream
Sep 20, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 20, 2026
The Kirki WordPress plugin before 6.3.1 does not sanitize uploaded SVG files while making them uploadable site-wide, allowing users with author-level access and above to upload a file containing JavaScript which is then served from the site's own origin and runs in the session of anyone who opens it.
Quoted source text, attributed separately from HOL analysis.