CVE-2026-45272

MyBooks is an enhanced and easy-to-use personal ebook management web server also known as Talebook. In 3.41.2 and earlier, the AdminSettings.post handler in webserver/handlers/admin.py accepts SOCIAL_AUTH key names without validating quotes or newline characters, and SettingsLoader.dumpfile in webserver/loader.py concatenates those names into the generated Python source file auto.py without escaping them. An administrator can submit a crafted SOCIAL_AUTH key name that closes the settings dictionary and injects arbitrary Python statements. The application later executes those statements because SettingsLoader.loadfile imports auto.py as a module, and setting autoreload to true invokes restart_async so a process supervisor restarts the service and triggers the import. Successful exploitation executes commands with the privileges of the application service account and can disclose data, modify files, establish persistence, or disrupt the service. Related authorization and registration vulnerabilities can reduce the effective privilege requirement in a chained attack, but the standalone vulnerability requires administrator access. 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-4wfr-9gcv-j638

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 15:17

Updated : 2026-09-09 21:13

NVD link : CVE-2026-45272

Mitre link : CVE-2026-45272

CVE.ORG link : CVE-2026-45272

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

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