CVE-2023-41889

MEDIUM EPSS 43.4%
Published Sep 15, 20232y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Sep 15, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
43.4% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-116
CWE-176

Affected Products 1

VendorProductVersionRange
ss-projshirasagi* <1.18.0

References 3

  • github.com https://github.com/shirasagi/shirasagi/blob/f249ce3f06f6bfbc0017b38f5c13de424334c3ea/app/models/concerns/rdf/object.rb#L68-L72
    Product
  • github.com https://github.com/shirasagi/shirasagi/security/advisories/GHSA-xr45-c2jv-2v9r
    ExploitMitigationVendor Advisory
  • sim4n6.beehiiv.com https://sim4n6.beehiiv.com/p/unicode-characters-bypass-security-checks
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.