VDB-190622 · CVE-2021-4164 · GCVE-0-2021-4164

Calibre-Web cross-site request forgery

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Calibre-Web. This vulnerability affects unknown code. Such manipulation leads to cross-site request forgery. This vulnerability is uniquely identified as CVE-2021-4164. The attack can be launched remotely. No exploit exists. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Calibre-Web (unknown version). Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity.

The weakness was disclosed 01/17/2022. The advisory is available at huntr.dev. This vulnerability is handled as CVE-2021-4164 since 12/24/2021. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Applying the patch 785726deee13b4d56f6c3503dd57c1e3eb7d6f30 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

Calibre-Web

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 7.6
CNA Vector (huntr.dev): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 785726deee13b4d56f6c3503dd57c1e3eb7d6f30

Timelineinfo

12/24/2021 🔍
01/17/2022 +24 days 🔍
01/17/2022 +0 days 🔍
05/02/2025 +1201 days 🔍

Sourcesinfo

Advisory: 785726deee13b4d56f6c3503dd57c1e3eb7d6f30
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-4164 (🔍)
GCVE (CVE): GCVE-0-2021-4164
GCVE (VulDB): GCVE-100-190622

Entryinfo

Created: 01/17/2022 17:00
Updated: 05/02/2025 02:10
Changes: 01/17/2022 17:00 (47), 01/20/2022 08:09 (3), 11/19/2024 16:01 (33), 05/02/2025 02:10 (3)
Complete: 🔍
Cache ID: 216::103