dicourse-calendar Event Title cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in dicourse-calendar. The affected element is an unknown function of the component Event Title Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is registered as CVE-2023-43658. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in dicourse-calendar (Calendar Software) (unknown version). This vulnerability affects an unknown code block of the component Event Title 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. CVE summarizes:

dicourse-calendar is a plugin for the Discourse messaging platform which adds the ability to create a dynamic calendar in the first post of a topic. Improper escaping of event titles could lead to Cross-site Scripting (XSS) within the 'email preview' UI when a site has CSP disabled. Having CSP disabled is a non-default configuration, so the vast majority of sites are unaffected. This problem is resolved in the latest version of the discourse-calendar plugin. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum.

The weakness was published 10/17/2023 as GHSA-3fwj-f6ww-7hr6. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-43658 since 09/20/2023. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Applying the patch 9788310906febb36822d6823d14f1059c39644de is able to eliminate this problem. The bugfix is ready for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 8.0
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: 9788310906febb36822d6823d14f1059c39644de

Timelineinfo

09/20/2023 🔍
10/17/2023 +27 days 🔍
10/17/2023 +0 days 🔍
11/03/2023 +17 days 🔍

Sourcesinfo

Advisory: GHSA-3fwj-f6ww-7hr6
Status: Confirmed

CVE: CVE-2023-43658 (🔍)
GCVE (CVE): GCVE-0-2023-43658
GCVE (VulDB): GCVE-100-242380

Entryinfo

Created: 10/17/2023 08:28
Updated: 11/03/2023 16:57
Changes: 10/17/2023 08:28 (51), 11/03/2023 16:57 (11)
Complete: 🔍
Cache ID: 216::103

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