{"items":[{"id":"NVI-00006565","kind":"vulnerability","title":"Cross-site Scripting in the yoast_seo TYPO3 extension","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-28w5-j8xj-2xwc","CVE-2021-36788"],"plain_summary":"OSV carries this publisher advisory for yoast-seo-for-typo3/yoast_seo. 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 7.2.3 for yoast-seo-for-typo3/yoast_seo. Confirm the publisher’s latest guidance.","source_ids":["sr-ba0b435ffe9343f0d91885bc6169b9e0"],"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-28e1dd7e559cf51267b01453cd6a98e0"],"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":"2026-06-17T03:59:25.473Z","value":"3.5 LOW (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-2bbf80e1a94f8e0a87396ed704496ea1"},{"kind":"CVSS","as_of":"2026-06-17T03:59:25.473Z","value":"5.4 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-2bbf80e1a94f8e0a87396ed704496ea1"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.471%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40716. Missing scores are unknown.","source_id":"sr-28e1dd7e559cf51267b01453cd6a98e0"}],"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-ba0b435ffe9343f0d91885bc6169b9e0","url":"https://github.com/advisories/GHSA-28w5-j8xj-2xwc","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-28w5-j8xj-2xwc","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:40.013Z"},{"id":"sr-2bbf80e1a94f8e0a87396ed704496ea1","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36788","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2021-36788","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T23:13:41.256Z"},{"id":"sr-28e1dd7e559cf51267b01453cd6a98e0","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-2021-36788","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ba0b435ffe9343f0d91885bc6169b9e0"],"technology":"yoast-seo-for-typo3/yoast_seo","known_exclusions":[],"conditions_summary":"The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 7.2.3"]}],"null_published_at":"2026-11-01T01:04:01.274Z","source_updated_at":"2023-11-08T04:06:16.613Z","source_disclosed_at":"2021-09-01T18:36:44.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:40.013Z"},{"id":"NVI-00006565","kind":"vulnerability","title":"Cross-site Scripting in the yoast_seo TYPO3 extension","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-28w5-j8xj-2xwc","CVE-2021-36788"],"plain_summary":"OSV carries this publisher advisory for yoast-seo-for-typo3/yoast_seo. 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 7.2.3 for yoast-seo-for-typo3/yoast_seo. Confirm the publisher’s latest guidance.","source_ids":["sr-ba0b435ffe9343f0d91885bc6169b9e0"],"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-28e1dd7e559cf51267b01453cd6a98e0"],"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":"0.471%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40716. Missing scores are unknown.","source_id":"sr-28e1dd7e559cf51267b01453cd6a98e0"}],"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-ba0b435ffe9343f0d91885bc6169b9e0","url":"https://github.com/advisories/GHSA-28w5-j8xj-2xwc","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-28w5-j8xj-2xwc","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:40.013Z"},{"id":"sr-28e1dd7e559cf51267b01453cd6a98e0","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-2021-36788","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ba0b435ffe9343f0d91885bc6169b9e0"],"technology":"yoast-seo-for-typo3/yoast_seo","known_exclusions":[],"conditions_summary":"The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 7.2.3"]}],"null_published_at":"2026-10-31T22:27:09.619Z","source_updated_at":"2023-11-08T04:06:16.613Z","source_disclosed_at":"2021-09-01T18:36:44.000Z","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":"2026-10-31T21:41:40.013Z"},{"id":"NVI-00006565","kind":"vulnerability","title":"Cross-site Scripting in the yoast_seo TYPO3 extension","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-28w5-j8xj-2xwc","CVE-2021-36788"],"plain_summary":"OSV carries this publisher advisory for yoast-seo-for-typo3/yoast_seo. 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 7.2.3 for yoast-seo-for-typo3/yoast_seo. Confirm the publisher’s latest guidance.","source_ids":["sr-ba0b435ffe9343f0d91885bc6169b9e0"],"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-ba0b435ffe9343f0d91885bc6169b9e0","url":"https://github.com/advisories/GHSA-28w5-j8xj-2xwc","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-28w5-j8xj-2xwc","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:40.013Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ba0b435ffe9343f0d91885bc6169b9e0"],"technology":"yoast-seo-for-typo3/yoast_seo","known_exclusions":[],"conditions_summary":"The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 7.2.3"]}],"null_published_at":"2026-10-31T22:13:10.062Z","source_updated_at":"2023-11-08T04:06:16.613Z","source_disclosed_at":"2021-09-01T18:36:44.000Z","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":"2026-10-31T21:41:40.013Z"}],"next_cursor":null,"snapshot_revision":"42594"}