Is CVE-2023-37908 actively exploited?

No active exploitation of CVE-2023-37908 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-37908 be exploited remotely?

Yes. CVE-2023-37908 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-37908?

CVE-2023-37908 has a CVSS score of 9.6 (CRITICAL).

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CRITICAL

CVE-2023-37908

CWE-83Published: October 25, 2023· Updated: Jun 17, 2026

9.6

CVSS v3.1

Official Description

XWiki Rendering is a generic Rendering system that converts textual input in a given syntax into another syntax. The cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki. When a user moves the mouse over a malicious link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. While this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix `data-xwiki-translated-attribute-` without further cleaning or validation. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again. There are no known workarounds apart from upgrading to a version including the fix.

NVD Source

Technical Analysis

CVE-2023-37908 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.6.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.