{"cve":"CVE-2023-41889","nvd":{"published":"2023-09-15T21:15:11.503","modified":"2026-06-17T06:23:00.740","status":"Modified","description":"SHIRASAGI is a Content Management System. Prior to version 1.18.0, SHIRASAGI is vulnerable to a Post-Unicode normalization issue. This happens when a logical validation or a security check is performed before a Unicode normalization. The Unicode character equivalent of a character would resurface after the normalization. The fix is initially performing the Unicode normalization and then strip for all whitespaces and then checking for a blank string. This issue has been fixed in version 1.18.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-116","CWE-176"],"references":["https://github.com/shirasagi/shirasagi/blob/f249ce3f06f6bfbc0017b38f5c13de424334c3ea/app/models/concerns/rdf/object.rb#L68-L72","https://github.com/shirasagi/shirasagi/security/advisories/GHSA-xr45-c2jv-2v9r","https://sim4n6.beehiiv.com/p/unicode-characters-bypass-security-checks","https://github.com/shirasagi/shirasagi/blob/f249ce3f06f6bfbc0017b38f5c13de424334c3ea/app/models/concerns/rdf/object.rb#L68-L72","https://github.com/shirasagi/shirasagi/security/advisories/GHSA-xr45-c2jv-2v9r"],"products":["ss-proj:shirasagi"],"source":"nvd","synced_at":"2026-10-19T21:39:24.235896374+00:00"},"epss":{"cve":"CVE-2023-41889","score":0.00706,"percentile":0.53384,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}