{"id":"CVE-2026-55464","aliases":["GHSA-r52f-r9v5-66xr"],"title":"Snipe-IT vulnerable to stored XSS via Markdown custom field ","summary":"Snipe-IT vulnerable to stored XSS via Markdown custom field ","severity":"medium","cvss":5.4,"cwe":["CWE-79"],"vendor":"snipe","product":"snipe/snipe-it","ecosystem":"composer","affected":["snipe/snipe-it <= 8.6.1"],"patched":["snipe/snipe-it 8.6.2"],"published":"2026-08-28","updated":"2026-08-28","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-r52f-r9v5-66xr","references":[{"url":"https://github.com/grokability/snipe-it/security/advisories/GHSA-r52f-r9v5-66xr"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55464"},{"url":"https://github.com/grokability/snipe-it/commit/006981cccffce1739e24d3b680b676f772f40e2d"},{"url":"https://github.com/grokability/snipe-it/releases/tag/v8.6.2"},{"url":"https://github.com/advisories/GHSA-r52f-r9v5-66xr"}],"tags":["ghsa","composer"],"epss":0.00295,"epssPercentile":0.22329,"ingestedAt":"2026-08-28T18:23:37.759Z","slug":"CVE-2026-55464","body":"## Overview\n\n### Impact\nCommonMark is configured with `html_input => 'escape'`, which blocks raw HTML injection. However, javascript: URIs in Markdown hyperlinks are not sanitized. A user with `assets.edit` permission can inject a malicious link into any markdown-textarea custom field. Any user who opens the asset detail page and clicks the link executes arbitrary JavaScript in their browser session.\n\n## Affected packages\n\n- `snipe/snipe-it <= 8.6.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `snipe/snipe-it 8.6.2`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}