CVEvulnerability
CVE-2023-41889
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2023-09-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-116, CWE-176
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.
Affected configurations
• ss-proj shirasagi (< 1.18.0)
Related
References
- https://github.com/shirasagi/shirasagi/blob/f249ce3f06f6bfbc0017b38f5c13de424334c3ea/app/models/concerns/rdf/object.rb#L68-L72 Product
- https://github.com/shirasagi/shirasagi/security/advisories/GHSA-xr45-c2jv-2v9r Exploit, Mitigation, Vendor Advisory
- https://sim4n6.beehiiv.com/p/unicode-characters-bypass-security-checks Exploit, Third Party Advisory
- https://github.com/shirasagi/shirasagi/blob/f249ce3f06f6bfbc0017b38f5c13de424334c3ea/app/models/concerns/rdf/object.rb#L68-L72 Product
- https://github.com/shirasagi/shirasagi/security/advisories/GHSA-xr45-c2jv-2v9r Exploit, Mitigation, Vendor Advisory
- https://sim4n6.beehiiv.com/p/unicode-characters-bypass-security-checks Exploit, Third Party Advisory