CVE-2026-45273

MyBooks is an ebook management web server also known as Talebook. In 3.41.2 and earlier, the AdminSettings.post handler for POST /api/admin/settings in webserver/handlers/admin.py applies the auth decorator but does not check the self.admin_user property, unlike the corresponding GET handler. Any authenticated regular user can therefore overwrite server configuration values including SMTP credentials, OAuth client secrets, storage paths, security feature flags, and autoreload settings. The process_auth_header function in webserver/handlers/base.py also fails to verify the matched account's active flag, allowing a registered but unactivated account to authenticate and reach the vulnerable handler. Exploitation can disclose secrets through configuration access paths, sabotage application behavior, force service restarts, and supply the settings needed for related code-injection attacks. This issue is fixed in version 3.42.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/PoxenStudio/mybooks/commit/a1780c98b00566af7da2fc099fe38500efc02e92
https://github.com/PoxenStudio/mybooks/releases/tag/3.42.0
https://github.com/PoxenStudio/mybooks/security/advisories/GHSA-354j-9hx8-3p45
https://github.com/PoxenStudio/mybooks/security/advisories/GHSA-354j-9hx8-3p45

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 15:17

Updated : 2026-09-09 21:13

NVD link : CVE-2026-45273

Mitre link : CVE-2026-45273

CVE.ORG link : CVE-2026-45273

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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