What is the CVSS score of CVE-2023-46743?

CVE-2023-46743 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.5%.

Is there a public PoC exploit available for CVE-2023-46743?

Yes, a public proof-of-concept exploit is available for CVE-2023-46743. Prioritise patching immediately. EPSS: 0.5%.

Xwiki CVE-2023-46743

MEDIUM

Incorrect Default Permissions (CWE-276)

2023-11-09 security-advisories@github.com

Privilege Escalation Microsoft Xwiki Application Collabora

4.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Nov 09, 2023 - 16:15 nvd

MEDIUM 4.3

DescriptionNVD

application-collabora is an integration of Collabora Online in XWiki. As part of the application use cases, depending on the rights that a user has over a document, they should be able to open the office attachments files in view or edit mode. Currently, if a user opens an attachment file in edit mode in collabora, this right will be preserved for all future users, until the editing session is closes, even if some of them have only view right. Collabora server is the one issuing this request and it seems that the userCanWrite query parameter is cached, even if, for example, token is not. This issue has been patched in version 1.3.

AnalysisAI

application-collabora is an integration of Collabora Online in XWiki. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Incorrect Default Permissions (CWE-276), which allows attackers to access resources due to overly permissive default settings. application-collabora is an integration of Collabora Online in XWiki. As part of the application use cases, depending on the rights that a user has over a document, they should be able to open the office attachments files in view or edit mode. Currently, if a user opens an attachment file in edit mode in collabora, this right will be preserved for all future users, until the editing session is closes, even if some of them have only view right. Collabora server is the one issuing this request and it seems that the userCanWrite query parameter is cached, even if, for example, token is not. This issue has been patched in version 1.3. Affected products include: Xwiki Application-Collabora. Version information: version 1.3..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set restrictive default permissions, follow principle of least privilege, review defaults during deployment.