{"schema":"threatline.record/2","record":{"id":"CVE-2026-115481","aliases":["GHSA-8jrp-4h7c-m679"],"summary":"baserCMS: BcCustomContent file fields can be configured to allow executable file extensions such as php, leading to arbitrary PHP file upload","details":"baserCMS is a website development framework. Starting in version 5.0.0-beta1 and prior to versions 5.3.2 and 5.4.2, `PermissionGroupsService::build()` reads a plugin's `config/permission.php` to decide what each user group may reach. When that file is absent it writes a wildcard allow rule instead: `url` `/baser/<prefix>/<plugin>/*`, `method` `*`, `auth` true, for every non-admin group. BcCustomContent has no such file in any release. After an administrator installs it, the default `operators` group can store and execute arbitrary PHP under the document root. Versions 5.3.2 and 5.4.2 patch the issue.","categories":["Unclassified"],"product":"basercms","vendor":"baserproject","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115481","source_modified_at":"2026-10-23T14:58:03.802Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"basercms","vendor":"baserproject","versions":[{"status":"affected","version":">= 5.0.0-beta1, < 5.3.2"},{"status":"affected","version":">= 5.4.0, < 5.4.2"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679","source_modified_at":"2026-10-23T13:28:52Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"other","name":"baserCMS"},"range":"<= 5.4.1"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679","source_modified_at":"2026-10-23T13:28:52Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"other","name":"baserCMS"},"version":"5.3.2"},{"source":"GitHub Advisory Database","source_url":"https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679","source_modified_at":"2026-10-23T13:28:52Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"other","name":"baserCMS"},"version":"5.4.2"}],"cvss":8.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00466,"percentile":0.39418,"score_date":"2026-10-24"},"published_at":"2026-10-23T13:34:26.038Z","modified_at":"2026-10-23T14:58:03.802Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115481","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T14:58:03.802Z"},{"source":"GitHub Advisory Database","url":"https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T13:28:52Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115481","fetched_at":"2026-10-24T18:03:20.872036Z","source_modified_at":"2026-10-24"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/baserproject/basercms/commit/2ed19c878add5c26fc765572e0e77173c1f1fdb5","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/baserproject/basercms/commit/b0ef31b10dc6267b48ebc9a80d34bc7c4c09c311","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/baserproject/basercms/releases/tag/5.3.2","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/baserproject/basercms/releases/tag/5.4.2","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-23T14:54:26.499088Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T14:58:03.802Z","content_hash":"c39bc483d5a42d698ca80784bd9810c659d0cd282116708f948542a87c7d0a96"}}