XWiki Platform: Arbitrary Attachment Move (v<14.4.8 & <15.0RC1)
CVE-2023-37910 Published on October 25, 2023
org.xwiki.platform:xwiki-platform-attachment-api vulnerable to Missing Authorization on Attachment Move
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting with the introduction of attachment move support in version 14.0-rc-1 and prior to versions 14.4.8, 14.10.4, and 15.0-rc-1, an attacker with edit access on any document (can be the user profile which is editable by default) can move any attachment of any other document to this attacker-controlled document. This allows the attacker to access and possibly publish any attachment of which the name is known, regardless if the attacker has view or edit rights on the source document of this attachment. Further, the attachment is deleted from the source document. This vulnerability has been patched in XWiki 14.4.8, 14.10.4, and 15.0 RC1. There is no workaround apart from upgrading to a fixed version.
Vulnerability Analysis
CVE-2023-37910 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2023-37910. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2023-37910 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2023-37910
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Affected Versions
xwiki-platform:- Version >= 14.0-rc-1, < 14.4.8 is affected.
- Version >= 14.5, < 14.10.4 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2023-37910
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | org.xwiki.platform:xwiki-platform-attachment-api | >= 14.0-rc-1, < 14.4.8 | 14.4.8 |
| maven | org.xwiki.platform:xwiki-platform-attachment-api | >= 14.5, < 14.10.4 | 14.10.4 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.