CVE-2023-3375: Unrestricted File Upload in Bookreen

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-05 · updated 2026-06-17
Weakness: CWE-434

Description

Unrestricted Upload of File with Dangerous Type vulnerability in Unisign Bookreen allows OS Command Injection. This issue affects Bookreen: before 3.0.0.

Affected products

Unisign Bookreen: before 3.0.0 — fixed in 3.0.0

How to fix

Upgrade to a fixed version: Unisign Bookreen 3.0.0. Check the vendor advisory for mitigations.

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0489
https://www.usom.gov.tr/bildirim/tr-23-0489
https://www.usom.gov.tr/bildirim/tr-23-0489

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