What’s Vulnerable › Vulnerabilities

CVE-2023-3374: Privilege Escalation in Bookreen

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% 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-184

Description

Incomplete List of Disallowed Inputs vulnerability in Unisign Bookreen allows Privilege Escalation. 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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