6.8
MEDIUM
CVE-2023-22455
Discourse XSS via Tag Descriptions
Description
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, tag descriptions, which can be updated by moderators, can be used for cross-site scripting attacks. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. Versions 2.8.14 and 3.0.0.beta16 contain a patch.
INFO
Published Date :
Jan. 5, 2023, 9:15 p.m.
Last Modified :
Jan. 11, 2023, 9:07 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
0.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-22455.
| URL | Resource |
|---|---|
| https://github.com/discourse/discourse/commit/692329896ac64d8581947e977202c243eef3b5a2 | Patch Third Party Advisory |
| https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-22455 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-22455 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 11, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/discourse/discourse/commit/692329896ac64d8581947e977202c243eef3b5a2 No Types Assigned https://github.com/discourse/discourse/commit/692329896ac64d8581947e977202c243eef3b5a2 Patch, Third Party Advisory Changed Reference Type https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9 No Types Assigned https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* versions up to (excluding) 2.8.14 Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:1.1.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta6b:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.1.0:beta8:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta8:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.2.0:beta9:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta10:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta11:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta8:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.3.0:beta9:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta10:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta11:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta12:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta8:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.4.0:beta9:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta10:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta11:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta12:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta13:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta13b:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta14:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta8:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:1.5.0:beta9:*:*:beta:*:*:* 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*cpe:2.3:a:discourse:discourse:2.5.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.5.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.5.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.5.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.5.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.5.0:beta7:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.6.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.6.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.6.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.6.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.6.0:beta5:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.6.0:beta6:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.7.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.7.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.7.0:beta3:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.7.0:beta4:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:2.7.0:beta5:*:*:beta:*:*:* 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EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-22455 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-22455
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26664
percentile
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability