Auth bypass in Qinguoyi Tinywebserver
CVE-2025-3268
A vulnerability has been found in qinguoyi TinyWebServer up to 1.0 and classified as critical. This vulnerability affects unknown code of the file http/http_conn.cpp. The manipulation of the argument m_url_real leads to improper authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (54.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Qinguoyi Tinywebserver — versions 1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- magnificent-dill-351.notion.site/Improper-Authentication-in-TinyWebServer-1-0-1… (exploit, Broken Link)
Frequently asked questions
- What is CVE-2025-3268?
- CVE-2025-3268 is a medium-severity vulnerability in Qinguoyi Tinywebserver, classified under Improper Authentication. CVSS score: 5.3/10. Published 2025-04-04.
- How severe is CVE-2025-3268?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-3268 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.