XSS in Newapi New API
CVE-2025-55573
QuantumNous new-api v.0.8.5.2 is vulnerable to Cross Site Scripting (XSS).
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/QuantumNous/new-api (Product)
- github.com/zh0u9527/docs/blob/master/new-api-wp.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-55573?
- CVE-2025-55573 is a high-severity vulnerability in Newapi New API, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2025-08-22.
- How severe is CVE-2025-55573?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-55573 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.