What is the CVSS score of CVE-2025-63498?

CVE-2025-63498 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Sogo are affected by CVE-2025-63498?

Organizations using alinto SOGo 5.12.3 should be aware of moderate risk from CVE-2025-63498, a cross-site scripting vulnerability rated CVSS 6.1.. A patch is available.

Is there a public PoC exploit available for CVE-2025-63498?

Yes, a public proof-of-concept exploit is available for CVE-2025-63498. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-63498?

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

Sogo CVE-2025-63498

MEDIUM

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

2025-11-24 cve@mitre.org

XSS Sogo Debian Linux

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

Patch released

Mar 28, 2026 - 19:23 nvd

Patch available

PoC Detected

Dec 30, 2025 - 17:32 vuln.today

Public exploit code

CVE Published

Nov 24, 2025 - 21:16 nvd

MEDIUM 6.1

DescriptionCVE.org

alinto SOGo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the "userName" parameter.

AnalysisAI

alinto SOGo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the "userName" parameter. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. alinto SOGo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the "userName" parameter. Affected products include: Alinto Sogo, Debian Debian Linux.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.