What is the CVSS score of CVE-2025-14556?

CVE-2025-14556 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%.

Which versions of Flag are affected by CVE-2025-14556?

CVE-2025-14556 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 5.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

Is there a public PoC exploit available for CVE-2025-14556?

Yes, a public proof-of-concept exploit is available for CVE-2025-14556. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-14556?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Flag CVE-2025-14556

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-14 mlhess@drupal.org

XSS Drupal Flag

5.4

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 23, 2026 - 14:08 vuln.today

Public exploit code

CVE Published

Jan 14, 2026 - 19:16 nvd

MEDIUM 5.4

DescriptionNVD

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Drupal Flag allows Cross-Site Scripting (XSS).This issue affects Flag: from 7.X-3.0 through 7.X-3.9.

AnalysisAI

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Flag. Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Drupal Flag allows Cross-Site Scripting (XSS).This issue affects Flag: from 7.X-3.0 through 7.X-3.9.

RemediationAI

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

CVE-2025-14556 vulnerability details – vuln.today

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