{"items":[{"id":"NVI-00004738","kind":"vulnerability","title":"flarum/nicknames extension has display name injection in notification emails (autolink & markdown)","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-3c4m-j3g4-hh25","CVE-2026-30913"],"plain_summary":"OSV carries this publisher advisory for flarum/nicknames. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 1.8.3 for flarum/nicknames. Confirm the publisher’s latest guidance.","source_ids":["sr-711f1a9b66fd83a16448599b503a3203"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-7dbfb8903d553c5125f37a23b72e289c"],"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":[{"kind":"CVSS","as_of":"2026-06-17T10:33:08.410Z","value":"4.6 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-ad09c17622997242be6c204bfef9c53a"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.176%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07046. Missing scores are unknown.","source_id":"sr-7dbfb8903d553c5125f37a23b72e289c"}],"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-711f1a9b66fd83a16448599b503a3203","url":"https://github.com/advisories/GHSA-3c4m-j3g4-hh25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-3c4m-j3g4-hh25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.654Z"},{"id":"sr-ad09c17622997242be6c204bfef9c53a","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30913","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-30913","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T01:40:56.268Z"},{"id":"sr-7dbfb8903d553c5125f37a23b72e289c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-30913","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.376Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-711f1a9b66fd83a16448599b503a3203"],"technology":"flarum/nicknames","known_exclusions":[],"conditions_summary":"## Summary\n\nWhen the `flarum/nicknames` extension is enabled, a registered user can set their nickname to a string that email clients interpret as a hyperlink. The nickname is inserted verbatim into plain-text notification emails, and recipients may be misled into visiting attacker-controlled domains.\n\n## Affected package\n\n- **`flarum/nicknames`** — permissive display name driver that allows special characters; affected since initial release on the `1.x` branch\n\nAny third-party display name driver that permits special characters would be equally affected.\n\n## Variants\n\n1. **Domain autolink** — a nickname such as `nasty.com` is automatically converted to a clickable hyperlink by virtually all email clients (Gmail, Outlook, Apple Mail, Thunderbird).\n2. **Markdown link syntax** — a nickname such as `CLICK` is rendered as a clickable hyperlink by email clients that auto-render markdown in plain-text emails (e.g. Apple Mail, Thunderbird).\n\n## Steps to reproduce\n\n**Variant 1 (autolink — affects all email clients)**\n1. Enable `flarum/nicknames`, set nickname to `nasty.com`\n2. Trigger a notification email to another user (e.g. follow them, mention them)\n3. The nickname ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.8.3"]}],"null_published_at":"2026-11-06T15:18:17.676Z","source_updated_at":"2026-03-10T18:47:25.701Z","source_disclosed_at":"2026-03-10T00:56:30.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.654Z"},{"id":"NVI-00004738","kind":"vulnerability","title":"flarum/nicknames extension has display name injection in notification emails (autolink & markdown)","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3c4m-j3g4-hh25","CVE-2026-30913"],"plain_summary":"OSV carries this publisher advisory for flarum/nicknames. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 1.8.3 for flarum/nicknames. Confirm the publisher’s latest guidance.","source_ids":["sr-711f1a9b66fd83a16448599b503a3203"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-7dbfb8903d553c5125f37a23b72e289c"],"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":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.176%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07046. Missing scores are unknown.","source_id":"sr-7dbfb8903d553c5125f37a23b72e289c"}],"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-711f1a9b66fd83a16448599b503a3203","url":"https://github.com/advisories/GHSA-3c4m-j3g4-hh25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-3c4m-j3g4-hh25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.654Z"},{"id":"sr-7dbfb8903d553c5125f37a23b72e289c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-30913","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.376Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-711f1a9b66fd83a16448599b503a3203"],"technology":"flarum/nicknames","known_exclusions":[],"conditions_summary":"## Summary\n\nWhen the `flarum/nicknames` extension is enabled, a registered user can set their nickname to a string that email clients interpret as a hyperlink. The nickname is inserted verbatim into plain-text notification emails, and recipients may be misled into visiting attacker-controlled domains.\n\n## Affected package\n\n- **`flarum/nicknames`** — permissive display name driver that allows special characters; affected since initial release on the `1.x` branch\n\nAny third-party display name driver that permits special characters would be equally affected.\n\n## Variants\n\n1. **Domain autolink** — a nickname such as `nasty.com` is automatically converted to a clickable hyperlink by virtually all email clients (Gmail, Outlook, Apple Mail, Thunderbird).\n2. **Markdown link syntax** — a nickname such as `CLICK` is rendered as a clickable hyperlink by email clients that auto-render markdown in plain-text emails (e.g. Apple Mail, Thunderbird).\n\n## Steps to reproduce\n\n**Variant 1 (autolink — affects all email clients)**\n1. Enable `flarum/nicknames`, set nickname to `nasty.com`\n2. Trigger a notification email to another user (e.g. follow them, mention them)\n3. The nickname ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.8.3"]}],"null_published_at":"2026-11-01T19:14:01.621Z","source_updated_at":"2026-03-10T18:47:25.701Z","source_disclosed_at":"2026-03-10T00:56:30.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:49.654Z"},{"id":"NVI-00004738","kind":"vulnerability","title":"flarum/nicknames extension has display name injection in notification emails (autolink & markdown)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3c4m-j3g4-hh25","CVE-2026-30913"],"plain_summary":"OSV carries this publisher advisory for flarum/nicknames. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 1.8.3 for flarum/nicknames. Confirm the publisher’s latest guidance.","source_ids":["sr-711f1a9b66fd83a16448599b503a3203"],"action_type":"vendor_patch","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-711f1a9b66fd83a16448599b503a3203","url":"https://github.com/advisories/GHSA-3c4m-j3g4-hh25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-3c4m-j3g4-hh25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.654Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-711f1a9b66fd83a16448599b503a3203"],"technology":"flarum/nicknames","known_exclusions":[],"conditions_summary":"## Summary\n\nWhen the `flarum/nicknames` extension is enabled, a registered user can set their nickname to a string that email clients interpret as a hyperlink. The nickname is inserted verbatim into plain-text notification emails, and recipients may be misled into visiting attacker-controlled domains.\n\n## Affected package\n\n- **`flarum/nicknames`** — permissive display name driver that allows special characters; affected since initial release on the `1.x` branch\n\nAny third-party display name driver that permits special characters would be equally affected.\n\n## Variants\n\n1. **Domain autolink** — a nickname such as `nasty.com` is automatically converted to a clickable hyperlink by virtually all email clients (Gmail, Outlook, Apple Mail, Thunderbird).\n2. **Markdown link syntax** — a nickname such as `CLICK` is rendered as a clickable hyperlink by email clients that auto-render markdown in plain-text emails (e.g. Apple Mail, Thunderbird).\n\n## Steps to reproduce\n\n**Variant 1 (autolink — affects all email clients)**\n1. Enable `flarum/nicknames`, set nickname to `nasty.com`\n2. Trigger a notification email to another user (e.g. follow them, mention them)\n3. The nickname ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.8.3"]}],"null_published_at":"2026-10-31T22:12:57.140Z","source_updated_at":"2026-03-10T18:47:25.701Z","source_disclosed_at":"2026-03-10T00:56:30.000Z","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":"2026-10-31T21:41:49.654Z"}],"next_cursor":null,"snapshot_revision":"42594"}