What is the CVSS score of CVE-2025-13979?

CVE-2025-13979 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2025-13979?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Mini Site CVE-2025-13979

MEDIUM

Privilege Defined With Unsafe Actions (CWE-267)

2026-01-28 mlhess@drupal.org

XSS Drupal Mini Site

5.4

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-267 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V8 - Authorization Privilege defined with unsafe actions
Impact	CVSS 5.4 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to compromise the affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Privilege Defined With Unsafe Actions vulnerability in Drupal Mini site allows Stored XSS.This issue affects Mini site: from 0.0.0 before 3.0.2. [CVSS 5.4 MEDIUM]

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Affected Packages

composer drupal/minisite fix: 3.0.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Affects Mini Site. Privilege Defined With Unsafe Actions vulnerability in Drupal Mini site allows Stored XSS.This issue affects Mini site: from 0.0.0 before 3.0.2.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.4 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:C/C:L/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

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

CVE Published

Jan 28, 2026 - 20:16 nvd

MEDIUM 5.4

DescriptionCVE.org

Privilege Defined With Unsafe Actions vulnerability in Drupal Mini site allows Stored XSS.This issue affects Mini site: from 0.0.0 before 3.0.2.

Executive ViewAI

Why It Matters

Organizations using Privilege Defined With Unsafe Actions vulnerability in Drupal Mini site should be aware of moderate risk from CVE-2025-13979 rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.0%

Top 91% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.