What is the CVSS score of CVE-2025-54990?

CVE-2025-54990 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2025-54990?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review and tighten file/resource permissions.

CVE-2025-54990

MEDIUM

Incorrect Default Permissions (CWE-276)

2025-11-18 security-advisories@github.com

Privilege Escalation

5.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.3 MEDIUM

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:22 vuln.today

CVE Published

Nov 18, 2025 - 23:15 nvd

MEDIUM 5.3

DescriptionGitHub Advisory

XWiki AdminTools integrates administrative tools for managing a running XWiki instance. Prior to version 1.1, users without admin rights have access to AdminTools.SpammedPages. View rights are not restricted only to admin users for AdminTools.SpammedPages. While no data is visible to non admin users, the page is still accessible. This issue has been patched in version 1.1. A workaround involves setting the view rights for the AdminTools space to be only available for the XWikiAdminGroup.

AnalysisAI

XWiki AdminTools integrates administrative tools for managing a running XWiki instance. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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. XWiki AdminTools integrates administrative tools for managing a running XWiki instance. Prior to version 1.1, users without admin rights have access to AdminTools.SpammedPages. View rights are not restricted only to admin users for AdminTools.SpammedPages. While no data is visible to non admin users, the page is still accessible. This issue has been patched in version 1.1. A workaround involves setting the view rights for the AdminTools space to be only available for the XWikiAdminGroup. Version information: version 1.1.

Affected ProductsAI

See vendor advisory for affected versions.

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.