5.3

CVE-2023-41889

Exploit

Late-Unicode normalization vulnerability in SHIRASAGI

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Ss-proj ≫ Shirasagi Version < 1.18.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.58% 0.431
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
security-advisories@github.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-116 Improper Encoding or Escaping of Output

The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

CWE-176 Improper Handling of Unicode Encoding

The product does not properly handle when an input contains Unicode encoding.

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
Vendor Advisory
Exploit
Mitigation
https://sim4n6.beehiiv.com/p/unicode-characters-bypass-security-checks
Third Party Advisory
Exploit