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xwiki contains Exposed Dangerous Method or Function

Moderate severity GitHub Reviewed Published Mar 1, 2023 in xwiki/xwiki-platform

Package

maven org.xwiki.platform:xwiki-platform-store-filesystem-oldcore (Maven)

Affected versions

>= 14.3-rc-1, < 14.4.6
>= 14.5, < 14.9-rc-1

Patched versions

14.4.6
14.9-rc-1

Description

Impact

org.xwiki.store.script.TemporaryAttachmentsScriptService#uploadTemporaryAttachment is returning 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.

Patches

This has been patched in the version 14.9-rc-1 and 14.4.6.

Workarounds

There's no workaround for this issue.

References

https://jira.xwiki.org/browse/XWIKI-20180

For more information

If you have any questions or comments about this advisory:

References

@manuelleduc manuelleduc published to xwiki/xwiki-platform Mar 1, 2023
Published by the National Vulnerability Database Mar 2, 2023
Published to the GitHub Advisory Database Mar 3, 2023
Reviewed Mar 3, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(89th percentile)

Weaknesses

Exposed Dangerous Method or Function

The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted. Learn more on MITRE.

CVE ID

CVE-2023-26478

GHSA ID

GHSA-8692-g6g9-gm5p

Source code

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