What is the CVSS score of CVE-2025-62857?

CVE-2025-62857 has a CVSS 4.0 base score of 2.2 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:U. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2025-62857?

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

Qumagie CVE-2025-62857

LOW

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

2026-01-02 security@qnapsecurity.com.tw

XSS Qnap Qumagie

2.2

CVSS 4.0 · Vendor: qnapsecurity

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Vulnerability Assessment

Weakness	CWE CWE-79 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Output encoding, context-aware escaping MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 6.1 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. Exploitable via remote/network.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to compromise the affected system.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

A cross-site scripting (XSS) vulnerability has been reported to affect QuMagie. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data. [CVSS 6.1 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.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Qumagie. A cross-site scripting (XSS) vulnerability has been reported to affect QuMagie. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.

We have already fixed the vulnerability in the following version: QuMagie 2.8.1 and later

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (qnapsecurity) PRIMARY 2.2 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:U

Primary rating from Vendor (qnapsecurity) · only source for this CVE.

CVSS VectorVendor: qnapsecurity

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

Active

Vulnerable system: Confidentiality

None

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

High

Subsequent system: Integrity

Low

Subsequent system: Availability

None

Lifecycle Timeline

Severity Changed

Oct 14, 2026 - 13:22 NVD

MEDIUM LOW

CVSS changed

Oct 14, 2026 - 13:22 NVD

6.1 (MEDIUM) 2.2 (LOW)

CVE Published

Jan 02, 2026 - 15:16 nvd

MEDIUM 6.1

DescriptionCVE.org

A cross-site scripting (XSS) vulnerability has been reported to affect QuMagie. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.

We have already fixed the vulnerability in the following version: QuMagie 2.8.1 and later

Executive ViewAI

Why It Matters

CVE-2025-62857 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low

Compensating Controls

Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.

Threat Intelligence Overview

EPSS Score

0.1%

Top 72% 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 LOW

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

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.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Low

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +11

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:qnap:qumagie:*:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://www.qnap.com/en/security-advisory/qsa-25-49

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

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