{"items":[{"id":"NVI-00007523","kind":"vulnerability","title":"Semantic MediaWiki affected by Special:Ask table `sep` parameter reflected XSS","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7xv3-gf2g-498h","CVE-2026-77607"],"plain_summary":"OSV carries this publisher advisory for mediawiki/semantic-media-wiki. 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 7.2.0 for mediawiki/semantic-media-wiki. Confirm the publisher’s latest guidance.","source_ids":["sr-dec3ad9348927d6f97fd8851eace90c3"],"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-09b1260393d8329bb47904819ab7b3bc"],"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":"2026-11-02T12:00:30.000Z","value":"0.283%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.20827. Missing scores are unknown.","source_id":"sr-09b1260393d8329bb47904819ab7b3bc"}],"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-dec3ad9348927d6f97fd8851eace90c3","url":"https://github.com/advisories/GHSA-7xv3-gf2g-498h","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-7xv3-gf2g-498h","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.955Z"},{"id":"sr-09b1260393d8329bb47904819ab7b3bc","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-2026-77607","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.863Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-dec3ad9348927d6f97fd8851eace90c3"],"technology":"mediawiki/semantic-media-wiki","known_exclusions":[],"conditions_summary":"#### Failure mode\n\n`sep` was inserted verbatim into the HTML that joins a table cell's values. This made it possible to inject HTML through the separator value. The same unsanitised table HTML is produced both for the standard `Special:Ask` render and for its raw request output (`request_type=raw`), so the injection was reachable without authentication.\n\n#### Remediation\n\n- In all non-wiki output modes (HTML, raw request, file), `sep` is escaped unless it is a safe `` variant.\n- This preserves legitimate line-break separators while blocking markup injection.\n\n#### Maintenance note\n\nIf the table renderer ever gains richer separator semantics, keep the whitelist explicit. Do not expand the allowed HTML surface casually.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 7.2.0"]}],"null_published_at":"2026-11-03T17:49:15.032Z","source_updated_at":"2026-09-18T17:00:04.982Z","source_disclosed_at":"2026-09-18T16:50:01.000Z","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":"2026-10-31T21:41:59.955Z"},{"id":"NVI-00007523","kind":"vulnerability","title":"Semantic MediaWiki affected by Special:Ask table `sep` parameter reflected XSS","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7xv3-gf2g-498h","CVE-2026-77607"],"plain_summary":"OSV carries this publisher advisory for mediawiki/semantic-media-wiki. 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 7.2.0 for mediawiki/semantic-media-wiki. Confirm the publisher’s latest guidance.","source_ids":["sr-dec3ad9348927d6f97fd8851eace90c3"],"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-dec3ad9348927d6f97fd8851eace90c3","url":"https://github.com/advisories/GHSA-7xv3-gf2g-498h","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-7xv3-gf2g-498h","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.955Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-dec3ad9348927d6f97fd8851eace90c3"],"technology":"mediawiki/semantic-media-wiki","known_exclusions":[],"conditions_summary":"#### Failure mode\n\n`sep` was inserted verbatim into the HTML that joins a table cell's values. This made it possible to inject HTML through the separator value. The same unsanitised table HTML is produced both for the standard `Special:Ask` render and for its raw request output (`request_type=raw`), so the injection was reachable without authentication.\n\n#### Remediation\n\n- In all non-wiki output modes (HTML, raw request, file), `sep` is escaped unless it is a safe `` variant.\n- This preserves legitimate line-break separators while blocking markup injection.\n\n#### Maintenance note\n\nIf the table renderer ever gains richer separator semantics, keep the whitelist explicit. Do not expand the allowed HTML surface casually.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 7.2.0"]}],"null_published_at":"2026-10-31T22:13:18.623Z","source_updated_at":"2026-09-18T17:00:04.982Z","source_disclosed_at":"2026-09-18T16:50:01.000Z","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":"2026-10-31T21:41:59.955Z"}],"next_cursor":null,"snapshot_revision":"42594"}