Discourse up to 2.7.7/2.8.0.beta6 Error Message 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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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Discourse up to 2.7.7/2.8.0.beta6. It has been rated as problematic. Impacted is an unknown function of the component Error Message Handler. This manipulation causes cross site scripting. This vulnerability appears as CVE-2021-41095. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Discourse up to 2.7.7/2.8.0.beta6. It has been declared as problematic. Affected by this vulnerability is an unknown function of the component Error Message Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity.

The weakness was presented 09/28/2021 as GHSA-qvqx-2h7w-m479. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-41095 since 09/15/2021. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

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

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Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

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

CNA Base Score: 4.2
CNA Vector (GitHub, Inc.): 🔍

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

09/15/2021 🔍
09/28/2021 +13 days 🔍
09/28/2021 +0 days 🔍
10/03/2021 +5 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-qvqx-2h7w-m479
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41095 (🔍)
GCVE (CVE): GCVE-0-2021-41095
GCVE (VulDB): GCVE-100-183463

Entryinfo

Created: 09/28/2021 09:40
Updated: 10/03/2021 09:26
Changes: 09/28/2021 09:40 (49), 10/03/2021 09:23 (2), 10/03/2021 09:26 (1)
Complete: 🔍
Cache ID: 216::103

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