Discourse Content Security Policy 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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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Discourse. It has been classified as problematic. The affected element is an unknown function of the component Content Security Policy Handler. Performing a manipulation results in cross site scripting. This vulnerability is identified as CVE-2023-36473. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Discourse (unknown version). It has been classified as problematic. This affects an unknown code block of the component Content Security Policy Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

Discourse is an open source discussion platform. A CSP (Content Security Policy) nonce reuse vulnerability could allow XSS attacks to bypass CSP protection. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to completely bypass CSP. The vulnerability is patched in the latest tests-passed, beta and stable branches.

The weakness was released 07/14/2023 as GHSA-9f52-624j-8ppq. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2023-36473 since 06/21/2023. 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.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 6.8
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/21/2023 🔍
07/14/2023 +23 days 🔍
07/14/2023 +0 days 🔍
08/05/2023 +22 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-9f52-624j-8ppq
Status: Confirmed

CVE: CVE-2023-36473 (🔍)
GCVE (CVE): GCVE-0-2023-36473
GCVE (VulDB): GCVE-100-234141

Entryinfo

Created: 07/14/2023 08:14
Updated: 08/05/2023 17:29
Changes: 07/14/2023 08:14 (48), 08/05/2023 17:29 (11)
Complete: 🔍
Cache ID: 216::103

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Discussion

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