What is the CVSS score of CVE-2023-26478?

CVE-2023-26478 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2023-26478?

Yes, a public proof-of-concept exploit is available for CVE-2023-26478. Prioritise patching immediately. EPSS: 0.7%.

Is there a patch available for CVE-2023-26478?

Yes, a patch is available for CVE-2023-26478. Update the affected software to the latest version immediately.

Xwiki CVE-2023-26478

HIGH

Exposed Dangerous Method or Function (CWE-749)

2023-03-02 security-advisories@github.com

Information Disclosure Xwiki

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Mar 02, 2023 - 18:15 nvd

HIGH 8.1

DescriptionNVD

XWiki Platform is a generic wiki platform. Starting in version 14.3-rc-1, org.xwiki.store.script.TemporaryAttachmentsScriptService#uploadTemporaryAttachment returns an instance of com.xpn.xwiki.doc.XWikiAttachment. This class is not supported to be exposed to users without the programing right. com.xpn.xwiki.api.Attachment should be used instead and takes case of checking the user's rights before performing dangerous operations. This has been patched in versions 14.9-rc-1 and 14.4.6. There are no known workarounds for this issue.

AnalysisAI

XWiki Platform is a generic wiki platform. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-749. XWiki Platform is a generic wiki platform. Starting in version 14.3-rc-1, org.xwiki.store.script.TemporaryAttachmentsScriptService#uploadTemporaryAttachment returns an instance of com.xpn.xwiki.doc.XWikiAttachment. This class is not supported to be exposed to users without the programing right. com.xpn.xwiki.api.Attachment should be used instead and takes case of checking the user's rights before performing dangerous operations. This has been patched in versions 14.9-rc-1 and 14.4.6. There are no known workarounds for this issue. Affected products include: Xwiki. Version information: version 14.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.