CVE-2023-41889 Late-Unicode normalization vulnerability in SHIRASAGI

Medium 5.3 Published Updated

Attackers can bypass security checks in SHIRASAGI CMS by exploiting late Unicode normalization, allowing malicious inputs to pass validation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-41889?

CVE-2023-41889 is a medium-severity vulnerability in shirasagi, published on 15 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-116, CWE-176

Which versions are affected by CVE-2023-41889?

It affects 1 product.

Products include Ss-Proj Shirasagi.

How do I fix CVE-2023-41889?

No fix has been published for CVE-2023-41889 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-41889 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-41889 exists.

Sources

Also known as GHSA-xr45-c2jv-2v9r.

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