{"items":[{"id":"NVI-00005298","kind":"vulnerability","title":"Concrete CMS vulnerable to Reflected Cross-Site Scripting (XSS) in Conversation Messages Dashboard Page","revision":4,"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-4pcg-pjp5-3mc6","CVE-2025-8571"],"plain_summary":"OSV carries this publisher advisory for concrete5/concrete5, concrete5/concrete5. 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 8.5.21 for concrete5/concrete5. Confirm the publisher’s latest guidance.","source_ids":["sr-8a16f0a3ff216a33d994f89606376719"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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This report has not examined your application.","related_sources":[{"id":"sr-8a16f0a3ff216a33d994f89606376719","url":"https://github.com/advisories/GHSA-4pcg-pjp5-3mc6","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4pcg-pjp5-3mc6","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.671Z"},{"id":"sr-15af5b3d8814002e049390ff76d56418","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. 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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-0ea55873ca2e789dac85bb87ec5a20c7"],"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":"2026-11-01T12:00:16.000Z","value":"0.356%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.29345. Missing scores are unknown.","source_id":"sr-0ea55873ca2e789dac85bb87ec5a20c7"}],"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-8a16f0a3ff216a33d994f89606376719","url":"https://github.com/advisories/GHSA-4pcg-pjp5-3mc6","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4pcg-pjp5-3mc6","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.671Z"},{"id":"sr-0ea55873ca2e789dac85bb87ec5a20c7","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-2025-8571","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.261Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8a16f0a3ff216a33d994f89606376719"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS 9 to 9.4.2 and versions below 8.5.21 are vulnerable to Reflected Cross-Site Scripting (XSS) in the Conversation Messages Dashboard Page. Unsanitized input could cause theft of session cookies or tokens, defacement of web content, redirection to malicious sites, and (if victim is an admin), the execution of unauthorized actions.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 8.5.21"]},{"certainty":"source_listed","source_ids":["sr-8a16f0a3ff216a33d994f89606376719"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS 9 to 9.4.2 and versions below 8.5.21 are vulnerable to Reflected Cross-Site Scripting (XSS) in the Conversation Messages Dashboard Page. Unsanitized input could cause theft of session cookies or tokens, defacement of web content, redirection to malicious sites, and (if victim is an admin), the execution of unauthorized actions.","public_affected_ranges":["ECOSYSTEM: introduced 9.0.0RC1; fixed 9.4.3"]}],"null_published_at":"2026-11-03T17:49:18.460Z","source_updated_at":"2025-08-06T17:42:17.710Z","source_disclosed_at":"2025-08-06T00:30:25.000Z","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":"2026-10-31T21:41:49.671Z"},{"id":"NVI-00005298","kind":"vulnerability","title":"Concrete CMS vulnerable to Reflected Cross-Site Scripting (XSS) in Conversation Messages Dashboard Page","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4pcg-pjp5-3mc6","CVE-2025-8571"],"plain_summary":"OSV carries this publisher advisory for concrete5/concrete5, concrete5/concrete5. 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