What is the CVSS score of CVE-2023-22457?

CVE-2023-22457 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 18.7%.

Is there a public PoC exploit available for CVE-2023-22457?

Yes, a public proof-of-concept exploit is available for CVE-2023-22457. Prioritise patching immediately. EPSS: 18.7%.

Is there a patch available for CVE-2023-22457?

Yes, a patch is available for CVE-2023-22457. Update the affected software to the latest version immediately.

Xwiki CVE-2023-22457

HIGH

Cross-Site Request Forgery (CSRF) (CWE-352)

2023-01-04 security-advisories@github.com

RCE CSRF Xwiki Ckeditor Integration

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jan 04, 2023 - 15:15 nvd

HIGH 8.8

DescriptionNVD

CKEditor Integration UI adds support for editing wiki pages using CKEditor. Prior to versions 1.64.3,t he CKEditor.HTMLConverter document lacked a protection against Cross-Site Request Forgery (CSRF), allowing to execute macros with the rights of the current user. If a privileged user with programming rights was tricked into executing a GET request to this document with certain parameters (e.g., via an image with a corresponding URL embedded in a comment or via a redirect), this would allow arbitrary remote code execution and the attacker could gain rights, access private information or impact the availability of the wiki. The issue has been patched in the CKEditor Integration version 1.64.3. This has also been patched in the version of the CKEditor integration that is bundled starting with XWiki 14.6 RC1. There are no known workarounds for this other than upgrading the CKEditor integration to a fixed version.

AnalysisAI

CKEditor Integration UI adds support for editing wiki pages using CKEditor. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. CKEditor Integration UI adds support for editing wiki pages using CKEditor. Prior to versions 1.64.3,t he CKEditor.HTMLConverter document lacked a protection against Cross-Site Request Forgery (CSRF), allowing to execute macros with the rights of the current user. If a privileged user with programming rights was tricked into executing a GET request to this document with certain parameters (e.g., via an image with a corresponding URL embedded in a comment or via a redirect), this would allow arbitrary remote code execution and the attacker could gain rights, access private information or impact the availability of the wiki. The issue has been patched in the CKEditor Integration version 1.64.3. This has also been patched in the version of the CKEditor integration that is bundled starting with XWiki 14.6 RC1. There are no known workarounds for this other than upgrading the CKEditor integration to a fixed version. Affected products include: Xwiki Ckeditor Integration. Version information: version 1.64.3..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.