Vulnerability Details : CVE-2023-22468
Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2023-22468
- cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta11:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta12:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta13:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta14:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:2.9.0:beta9:*:*:beta:*:*:*
- cpe:2.3:a:discourse:discourse:3.0.0:beta15:*:*:beta:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-22468
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-22468
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2023-22468
-
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.Assigned by: security-advisories@github.com (Primary)
References for CVE-2023-22468
-
https://github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m
Stored XSS in local oneboxes · Advisory · discourse/discourse · GitHubThird Party Advisory
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