{"items":[{"id":"NVI-00017505","kind":"vulnerability","title":"@asymmetric-effort/specifyjs: CSS expression sanitization is bypassable in renderToString","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-93q6-wwjh-jc6h","CVE-2026-50290"],"plain_summary":"GitHub lists this reviewed advisory for @asymmetric-effort/specifyjs. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0d24af803c31d78b7b2b7ab391a6c1a7"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-0d24af803c31d78b7b2b7ab391a6c1a7","url":"https://github.com/advisories/GHSA-93q6-wwjh-jc6h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-93q6-wwjh-jc6h","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T03:47:42.887Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0d24af803c31d78b7b2b7ab391a6c1a7"],"technology":"@asymmetric-effort/specifyjs","known_exclusions":[],"conditions_summary":"## Finding\n\n**Location**: `core/src/server/render-to-string.ts:307-311`\n\nCSS value sanitization stripped `expression(` and `url(javascript:` using simple regex, but could be bypassed with CSS unicode escapes (`\\65xpression(`), null bytes, or CSS comments (`exp/**/ression(`).\n\n**Mitigating Factor**: These CSS injection vectors only work in legacy browsers (IE6-IE10). SpecifyJS targets modern browsers.\n\n## Status\n\n**Fixed in v0.2.136** — CSS sanitization now normalizes unicode escapes and strips CSS comments before pattern matching. Also checks for `behavior:`, `-moz-binding`, and `-o-link` patterns.","public_affected_ranges":["< 0.2.136"]}],"null_published_at":"2026-11-05T19:10:21.399Z","source_updated_at":"2026-07-02T19:08:46.000Z","source_disclosed_at":"2026-07-02T19:08:45.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-05T03:47:42.887Z"}],"next_cursor":null,"snapshot_revision":"42594"}