{"id":"CVE-2026-115457","revision":null,"records":[{"revision":"126dcd4035a440438bae403b9638010e","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-115457","aliases":[],"title":"baserCMS: Unauthenticated Stored XSS via Shortcode Expansion in Blog Comments","description":"baserCMS is a website development framework. In versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2, global shortcode expansion runs over the complete rendered page, including HTML-escaped blog comments supplied by unauthenticated visitors. A comment containing the BcBaser.getGoogleMaps shortcode can set apiBaseUrl to an attacker-controlled script URL, which is emitted as a script src and executes JavaScript on the site's origin when another visitor or administrator opens the article displaying that comment. Escaping raw HTML in comments does not prevent this stored cross-site scripting because shortcode processing happens after HTML rendering. Other registered shortcodes also expand in comments; Mail.getForm can embed a working contact form with a valid CSRF token. The flaw can compromise the authenticated browser context of an administrator who views the affected article. This issue has been patched in versions 5.3.2 and 5.4.2.","state":0,"publishedAt":"2026-10-23T14:00:33.254+00:00","modifiedAt":"2026-10-23T14:00:33.254+00:00","affected":[{"ecosystem":"Vendor product","name":"basercms","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"baserproject\",\n                    \"product\": \"basercms\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 5.0.0, < 5.3.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 5.4.0, < 5.4.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","score":7.1,"severity":"HIGH"}],"references":["https://github.com/baserproject/basercms/security/advisories/GHSA-qhv2-3j2q-v43x","https://github.com/baserproject/basercms/commit/bec4776ab497457fac76da7ae67d2dd0ad964eec","https://github.com/baserproject/basercms/releases/tag/5.3.2","https://github.com/baserproject/basercms/releases/tag/5.4.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115457","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115457","identifiers":["CVE-2026-115457"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-665f440a9c9d4b54b1994fb8fca504e6","complete":false,"records":6730,"lastAttemptAt":"2026-10-27T22:01:29.7177897+00:00","lastSuccessAt":"2026-10-27T22:01:29.711+00:00","error":null,"lastVerifiedAt":"2026-10-27T22:01:29.711+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":2000,"expectedIdentifiers":13513,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-27T21:49:05.3851431+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-27T21:49:05.3851431+00:00","lastSuccessAt":"2026-10-27T21:49:06.5163327+00:00","error":null,"lastVerifiedAt":"2026-10-27T21:49:06.516333+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-de9e9eab61d446269f01c9d7e8343fcd","complete":true,"records":13448,"lastAttemptAt":"2026-10-27T21:49:07.8025271+00:00","lastSuccessAt":"2026-10-27T21:49:07.798+00:00","error":null,"lastVerifiedAt":"2026-10-27T21:49:07.798+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13513,"expectedIdentifiers":13513,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-f7cb12508d9e6a348c8a60f772ed85529cc80cd2ff853da1099b57754b20e943","complete":true,"records":9790,"lastAttemptAt":"2026-10-27T21:49:04.8646993+00:00","lastSuccessAt":"2026-10-27T21:49:03.9756799+00:00","error":null,"lastVerifiedAt":"2026-10-27T21:49:04.8646993+00:00","snapshotPublishedAt":"2026-10-27T21:48:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-72e5e79de0026dd0562d40734074a2236a06886643d67182b8381eaee757dbf7","complete":true,"records":1966,"lastAttemptAt":"2026-10-27T21:46:38.1985492+00:00","lastSuccessAt":"2026-10-27T21:46:38.0277323+00:00","error":null,"lastVerifiedAt":"2026-10-27T21:46:38.1985492+00:00","snapshotPublishedAt":"2026-10-27T21:18:15+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-3a5b306d60fc44677a03a8afc99d87e6c5402770ef68d560f94a8c3ad3802b75","complete":true,"records":3001,"lastAttemptAt":"2026-10-27T21:49:05.3208204+00:00","lastSuccessAt":"2026-10-27T16:45:49.0050993+00:00","error":null,"lastVerifiedAt":"2026-10-27T21:49:05.3208204+00:00","snapshotPublishedAt":"2026-10-27T16:33:43+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-0df7807aec202a655c516145c6f927a5469810f435d300f64fe4175ab21ae077","complete":true,"records":230844,"lastAttemptAt":"2026-10-27T21:48:51.4200307+00:00","lastSuccessAt":"2026-10-27T21:48:50.0995961+00:00","error":null,"lastVerifiedAt":"2026-10-27T21:48:51.4200307+00:00","snapshotPublishedAt":"2026-10-27T21:18:19+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}