What is the CVSS score of CVE-2025-55573?

CVE-2025-55573 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of New Api are affected by CVE-2025-55573?

Organizations using QuantumNous new-api v.0.8.5.2 face significant risk from CVE-2025-55573, a cross-site scripting vulnerability rated CVSS 8.8.

Is there a public PoC exploit available for CVE-2025-55573?

Yes, a public proof-of-concept exploit is available for CVE-2025-55573. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-55573?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Verify anti-CSRF tokens and content security policies are enforced.

New Api CVE-2025-55573

HIGH

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

2025-08-22 cve@mitre.org

XSS New Api

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

PoC Detected

Sep 15, 2025 - 19:49 vuln.today

Public exploit code

CVE Published

Aug 22, 2025 - 15:15 nvd

HIGH 8.8

DescriptionCVE.org

QuantumNous new-api v.0.8.5.2 is vulnerable to Cross Site Scripting (XSS).

AnalysisAI

QuantumNous new-api v.0.8.5.2 is vulnerable to Cross Site Scripting (XSS). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch 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. QuantumNous new-api v.0.8.5.2 is vulnerable to Cross Site Scripting (XSS). Affected products include: Newapi New Api.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.