BookStack Web Page Generation cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in BookStack. It has been classified as problematic. Impacted is an unknown function of the component Web Page Generation Handler. The manipulation leads to cross site scripting. This vulnerability is listed as CVE-2021-3767. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in BookStack (unknown version). It has been rated as problematic. This issue affects an unknown code block of the component Web Page Generation Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

The weakness was presented 09/06/2021. The advisory is shared at huntr.dev. The identification of this vulnerability is CVE-2021-3767. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

09/04/2021 🔍
09/06/2021 +2 days 🔍
09/06/2021 +0 days 🔍
09/09/2021 +3 days 🔍

Sourcesinfo

Advisory: huntr.dev
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3767 (🔍)
GCVE (CVE): GCVE-0-2021-3767
GCVE (VulDB): GCVE-100-182033

Entryinfo

Created: 09/06/2021 16:50
Updated: 09/09/2021 20:12
Changes: 09/06/2021 16:50 (54), 09/09/2021 20:04 (3), 09/09/2021 20:12 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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