Bookreen up to 2.x incomplete blacklist

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Bookreen up to 2.x. It has been rated as critical. Affected by this vulnerability is an unknown functionality. The manipulation leads to incomplete blacklist. This vulnerability is documented as CVE-2023-3374. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Bookreen up to 2.x. It has been rated as very critical. This issue affects an unknown function. The manipulation with an unknown input leads to a incomplete blacklist vulnerability. Using CWE to declare the problem leads to CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete, leading to resultant weaknesses. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Incomplete List of Disallowed Inputs vulnerability in Unisign Bookreen allows Privilege Escalation.This issue affects Bookreen: before 3.0.0.

The weakness was released 09/06/2023. It is possible to read the advisory at usom.gov.tr. The identification of this vulnerability is CVE-2023-3374 since 06/23/2023. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/22/2026). The attack technique deployed by this issue is T1562.006 according to MITRE ATT&CK.

Upgrading to version 3.0.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Incomplete blacklist
CWE: CWE-184 / CWE-183 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Bookreen 3.0.0

Timelineinfo

06/23/2023 🔍
09/06/2023 +75 days 🔍
09/06/2023 +0 days 🔍
05/22/2026 +989 days 🔍

Sourcesinfo

Advisory: usom.gov.tr
Status: Confirmed

CVE: CVE-2023-3374 (🔍)
GCVE (CVE): GCVE-0-2023-3374
GCVE (VulDB): GCVE-100-238931

Entryinfo

Created: 09/06/2023 10:13
Updated: 05/22/2026 23:21
Changes: 09/06/2023 10:13 (47), 05/22/2026 14:41 (17), 05/22/2026 23:21 (1)
Complete: 🔍
Cache ID: 216::103

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