MyBB up to 1.8.27 Theme Management Template Name escape output

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in MyBB up to 1.8.27. It has been declared as critical. Affected by this issue is some unknown functionality of the component Theme Management. Such manipulation of the argument Template Name leads to escape output. This vulnerability is referenced as CVE-2021-41866. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in MyBB up to 1.8.27 (Content Management System) and classified as critical. Affected by this issue is some unknown processing of the component Theme Management. The manipulation of the argument Template Name with an unknown input leads to a escape output vulnerability. Using CWE to declare the problem leads to CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. Impacted is confidentiality, integrity, and availability.

The weakness was published 10/27/2021 as GHSA-gxhv-r3m5-6qv7. The advisory is available at github.com. This vulnerability is handled as CVE-2021-41866 since 10/04/2021. Technical details are known, but there is no available exploit.

Upgrading to version 1.8.28 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Escape output
CWE: CWE-116 / CWE-74 / CWE-707
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: MyBB 1.8.28

Timelineinfo

10/04/2021 🔍
10/27/2021 +23 days 🔍
10/27/2021 +0 days 🔍
10/31/2021 +4 days 🔍

Sourcesinfo

Product: mybb.com

Advisory: GHSA-gxhv-r3m5-6qv7
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41866 (🔍)
GCVE (CVE): GCVE-0-2021-41866
GCVE (VulDB): GCVE-100-185450

Entryinfo

Created: 10/27/2021 07:08
Updated: 10/31/2021 07:28
Changes: 10/27/2021 07:08 (41), 10/31/2021 07:16 (2), 10/31/2021 07:22 (16), 10/31/2021 07:28 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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