🛡️ CVE-2026-53645

⚪ Unknown ✅ No Known Exploit CWE-269 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has staff.create_and_edit_staff can call /api/admin/staff/permissions_update targeting their own account and write any permission structure, bypassing the intended role-based access control boundary. Version 0.8.0 patches the issue. Some workarounds are available. Restrict the staff.create_and_edit_staff permission to only highly trusted staff members and/or use a reverse proxy or WAF to restrict access to /api/admin/staff/permissions_update to specific trusted roles.

Weakness class

CVE-2026-53645 is classified as CWE-269: Improper Privilege Management. Privileges are assigned, dropped or restored incorrectly, leaving an actor with more access than intended.

Affected software

CVE-2026-53645 is recorded against 1 package.

  • unknown

Timeline and source

Published on 6 July 2026 and last revised on 7 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-269
Public Exploit ✅ No
Source NVD
Published 2026-07-06
Updated 2026-08-11
Modified 2026-07-07
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

Free Vulnerability Check

Is your site affected by CVE-2026-53645?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against CVE-2026-53645 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.