{"items":[{"id":"NVI-00006129","kind":"vulnerability","title":"baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)","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-qxmc-6f24-g86g","CVE-2026-21861"],"plain_summary":"OSV carries this publisher advisory for baserproject/basercms. 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 5.2.3 for baserproject/basercms. Confirm the publisher’s latest guidance.","source_ids":["sr-a89cbeffc7b88460625637dbfba4d701"],"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-bdd2269757daf586d65e9853bb619587"],"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":"2026-06-17T10:19:02.850Z","value":"9.1 CRITICAL (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-92b24f9ede32472fce93ef696d9a00da"},{"kind":"CVSS","as_of":"2026-06-17T10:19:02.850Z","value":"7.2 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-92b24f9ede32472fce93ef696d9a00da"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"2.322%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.83477. Missing scores are unknown.","source_id":"sr-bdd2269757daf586d65e9853bb619587"}],"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-a89cbeffc7b88460625637dbfba4d701","url":"https://github.com/advisories/GHSA-qxmc-6f24-g86g","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-qxmc-6f24-g86g","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.354Z"},{"id":"sr-92b24f9ede32472fce93ef696d9a00da","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21861","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-21861","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T01:40:47.597Z"},{"id":"sr-bdd2269757daf586d65e9853bb619587","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-2026-21861","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.375Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a89cbeffc7b88460625637dbfba4d701"],"technology":"baserproject/basercms","known_exclusions":[],"conditions_summary":"## Summary\n\nIn the core update functionality of baserCMS, some parameters sent from the admin panel are passed to the `exec()` function without proper validation or escaping. This issue allows **an authenticated CMS administrator to execute arbitrary OS commands on the server (Remote Code Execution, RCE)**.\n\nThis vulnerability is not a UI-level issue such as screen manipulation or lack of CSRF protection, but rather stems from **a design that directly executes input values received on the server side as OS commands**. Therefore, even if buttons are hidden in the UI, or even if CakePHP's CSRF/FormProtection (SecurityComponent) ensures that only legitimate POST requests are accepted, **an attack is possible as long as a request containing a valid token is processed within an administrator session**.\n\n---\n\n## Vulnerability Information\n\n| Item | Details |\n| ---- | ------- |\n| CWE | CWE-78: Improper Neutralization of Special Elements used in an OS Command |\n| Impact | Remote Code Execution (RCE) |\n| Severity | Critical |\n| Attack Requirements | Administrator privileges required |\n| Reproducibility | Reproducible (confirmed multiple times) |\n| Test Environment | baserCMS 5.2.2 (Docker / ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.2.3"]}],"null_published_at":"2026-11-06T21:03:47.997Z","source_updated_at":"2026-09-10T03:50:40.575Z","source_disclosed_at":"2026-03-31T22:27:05.000Z","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":"2026-10-31T21:42:41.354Z"},{"id":"NVI-00006129","kind":"vulnerability","title":"baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)","revision":2,"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-qxmc-6f24-g86g","CVE-2026-21861"],"plain_summary":"OSV carries this publisher advisory for baserproject/basercms. 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 5.2.3 for baserproject/basercms. Confirm the publisher’s latest guidance.","source_ids":["sr-a89cbeffc7b88460625637dbfba4d701"],"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-92b24f9ede32472fce93ef696d9a00da"],"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":"2026-06-17T10:19:02.850Z","value":"9.1 CRITICAL (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-92b24f9ede32472fce93ef696d9a00da"},{"kind":"CVSS","as_of":"2026-06-17T10:19:02.850Z","value":"7.2 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-92b24f9ede32472fce93ef696d9a00da"}],"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-a89cbeffc7b88460625637dbfba4d701","url":"https://github.com/advisories/GHSA-qxmc-6f24-g86g","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-qxmc-6f24-g86g","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.354Z"},{"id":"sr-92b24f9ede32472fce93ef696d9a00da","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21861","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-21861","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T01:40:47.597Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a89cbeffc7b88460625637dbfba4d701"],"technology":"baserproject/basercms","known_exclusions":[],"conditions_summary":"## Summary\n\nIn the core update functionality of baserCMS, some parameters sent from the admin panel are passed to the `exec()` function without proper validation or escaping. This issue allows **an authenticated CMS administrator to execute arbitrary OS commands on the server (Remote Code Execution, RCE)**.\n\nThis vulnerability is not a UI-level issue such as screen manipulation or lack of CSRF protection, but rather stems from **a design that directly executes input values received on the server side as OS commands**. Therefore, even if buttons are hidden in the UI, or even if CakePHP's CSRF/FormProtection (SecurityComponent) ensures that only legitimate POST requests are accepted, **an attack is possible as long as a request containing a valid token is processed within an administrator session**.\n\n---\n\n## Vulnerability Information\n\n| Item | Details |\n| ---- | ------- |\n| CWE | CWE-78: Improper Neutralization of Special Elements used in an OS Command |\n| Impact | Remote Code Execution (RCE) |\n| Severity | Critical |\n| Attack Requirements | Administrator privileges required |\n| Reproducibility | Reproducible (confirmed multiple times) |\n| Test Environment | baserCMS 5.2.2 (Docker / ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.2.3"]}],"null_published_at":"2026-11-04T18:04:03.200Z","source_updated_at":"2026-09-10T03:50:40.575Z","source_disclosed_at":"2026-03-31T22:27:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:41.354Z"},{"id":"NVI-00006129","kind":"vulnerability","title":"baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qxmc-6f24-g86g","CVE-2026-21861"],"plain_summary":"OSV carries this publisher advisory for baserproject/basercms. 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 5.2.3 for baserproject/basercms. Confirm the publisher’s latest guidance.","source_ids":["sr-a89cbeffc7b88460625637dbfba4d701"],"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-a89cbeffc7b88460625637dbfba4d701","url":"https://github.com/advisories/GHSA-qxmc-6f24-g86g","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-qxmc-6f24-g86g","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.354Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a89cbeffc7b88460625637dbfba4d701"],"technology":"baserproject/basercms","known_exclusions":[],"conditions_summary":"## Summary\n\nIn the core update functionality of baserCMS, some parameters sent from the admin panel are passed to the `exec()` function without proper validation or escaping. This issue allows **an authenticated CMS administrator to execute arbitrary OS commands on the server (Remote Code Execution, RCE)**.\n\nThis vulnerability is not a UI-level issue such as screen manipulation or lack of CSRF protection, but rather stems from **a design that directly executes input values received on the server side as OS commands**. Therefore, even if buttons are hidden in the UI, or even if CakePHP's CSRF/FormProtection (SecurityComponent) ensures that only legitimate POST requests are accepted, **an attack is possible as long as a request containing a valid token is processed within an administrator session**.\n\n---\n\n## Vulnerability Information\n\n| Item | Details |\n| ---- | ------- |\n| CWE | CWE-78: Improper Neutralization of Special Elements used in an OS Command |\n| Impact | Remote Code Execution (RCE) |\n| Severity | Critical |\n| Attack Requirements | Administrator privileges required |\n| Reproducibility | Reproducible (confirmed multiple times) |\n| Test Environment | baserCMS 5.2.2 (Docker / ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.2.3"]}],"null_published_at":"2026-10-31T22:13:05.869Z","source_updated_at":"2026-09-10T03:50:40.575Z","source_disclosed_at":"2026-03-31T22:27:05.000Z","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":"2026-10-31T21:42:41.354Z"}],"next_cursor":null,"snapshot_revision":"42594"}