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CVE-2021-41095
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
Discourse is an open source discussion platform. There is a cross-site scripting (XSS) vulnerability in versions 2.7.7 and earlier of the `stable` branch, versions 2.8.0.beta6 and earlier of the `beta` branch, and versions 2.8.0.beta6 and earlier of the `tests-passed` branch. Rendering of some error messages that contain user input can be susceptible to XSS attacks. This vulnerability only affects sites which have blocked watched words that contain HTML tags, modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest `stable`, `beta` and `tests-passed` versions of Discourse. As a workaround, avoid modifying or disabling Discourse’s default Content Security Policy, and blocking watched words containing HTML tags.
Discourse is an open source discussion platform. There is a cross-site scripting (XSS) vulnerability in versions 2.7.7 and earlier of the `stable` branch, versions 2.8.0.beta6 and earlier of the `beta` branch, and versions 2.8.0.beta6 and earlier of the `tests-passed` branch. Rendering of some error messages that contain user input can be susceptible to XSS attacks. This vulnerability only affects sites which have blocked watched words that contain HTML tags, modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest `stable`, `beta` and `tests-passed` versions of Discourse. As a workaround, avoid modifying or disabling Discourse’s default Content Security Policy, and blocking watched words containing HTML tags.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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Discourse is an open source discussion platform. There is a cross-site scripting (XSS) vulnerability in versions 2.7.7 and earlier of the `stable` branch, versions 2.8.0.beta6 and earlier of the `beta` branch, and versions 2.8.0.beta6 and earlier of the `tests-passed` branch. Rendering of some error messages that contain user input can be susceptible to XSS attacks. This vulnerability only affects sites which have blocked watched words that contain HTML tags, modified or disabled Discourse's def
Discourse is an open source discussion platform. There is a cross-site scripting (XSS) vulnerability in versions 2.7.7 and earlier of the `stable` branch, versions 2.8.0.beta6 and earlier of the `beta` branch, and versions 2.8.0.beta6 and earlier of the `tests-passed` branch. Rendering of some error messages that contain user input can be susceptible to XSS attacks. This vulnerability only affects sites which have blocked watched words that contain HTML tags, modified or disabled Discourse's def
Initial Analysis by NIST10/06/2021 11:49:17 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* versions up to (including) 2.7.7
*cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*
*cpe:2.3:a:discourse:discourse:2.8.0:beta2:*:*:*:*:*:*
*cpe:2.3:a:discourse:discourse:2.8.0:beta3:*:*:*:*:*:*
*cpe:2.3:a:discourse:discourse:2.8.0:beta4:*:*:*:*:*:*
*cpe:2.3:a:discourse:discourse:2.8.0:beta5:*:*:*:*:*:*
*cpe:2.3:a:discourse:discourse:2.8.0:beta6:*:*:*:*:*:*
Added
CVSS V2
NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Added
CVSS V2 Metadata
Victim must voluntarily interact with attack mechanism
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Added
CWE
NIST CWE-79
Changed
Reference Type
https://github.com/discourse/discourse/pull/14434/commits/40b776b9d39c41d9273d01eecf8fe03aa39fcb59 No Types Assigned
https://github.com/discourse/discourse/pull/14434/commits/40b776b9d39c41d9273d01eecf8fe03aa39fcb59 Patch, Third Party Advisory
Changed
Reference Type
https://github.com/discourse/discourse/security/advisories/GHSA-qvqx-2h7w-m479 No Types Assigned
https://github.com/discourse/discourse/security/advisories/GHSA-qvqx-2h7w-m479 Third Party Advisory
Quick Info
CVE Dictionary Entry: CVE-2021-41095 NVD
Published Date: 09/27/2021 NVD
Last Modified: 11/06/2023
Source: GitHub, Inc.