Auth bypass in Atjiu Pybbs
CVE-2025-8546
A vulnerability, which was classified as problematic, was found in atjiu pybbs up to 6.0.0. This affects the function adminlogin/login of the component Verification Code Handler. The manipulation leads to guessable captcha. It is possible…
Vulnerability class: Broken Authentication
EPSS: 0.005 (36.7th percentile) — read the EPSS interpretation.
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.
Affected products
- Atjiu Pybbs — versions 6.0
- Pybbs_project Pybbs
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Issue Tracking)
- cna@vuldb.com (issue-tracking, Issue Tracking)
- cna@vuldb.com (issue-tracking, Exploit, exploit, Issue Tracking)
- cna@vuldb.com (Patch, patch)
Frequently asked questions
- What is CVE-2025-8546?
- CVE-2025-8546 is a medium-severity vulnerability in Atjiu Pybbs, classified under Improper Authentication. CVSS score: 5.3/10. Published 2025-08-05.
- How severe is CVE-2025-8546?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-8546 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.