CVE-2023-37467
Discourse CSP Nonce Reuse XSS Bypass Vulnerability
Description
Discourse is an open source discussion platform. Prior to version 3.1.0.beta7 of the `beta` and `tests-passed` branches, a CSP (Content Security Policy) nonce reuse vulnerability was discovered could allow cross-site scripting (XSS) attacks to bypass CSP protection for anonymous (i.e. unauthenticated) users. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to bypass CSP and execute successfully. This vulnerability isn't applicable to logged-in users. Version 3.1.0.beta7 contains a patch. The stable branch doesn't have this vulnerability. A workaround to prevent the vulnerability is to disable Google Tag Manager, i.e., unset the `gtm container id` setting.
INFO
Published Date :
July 28, 2023, 3:15 p.m.
Last Modified :
Aug. 3, 2023, 6:34 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
1.6
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2023-37467
.
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CVE-2023-37467
vulnerability anywhere in the article.
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CVE-2023-37467
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.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 03, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/discourse/discourse/commit/0976c8fad6970b6182e7837bf87de07709407f25 No Types Assigned https://github.com/discourse/discourse/commit/0976c8fad6970b6182e7837bf87de07709407f25 Patch Changed Reference Type https://github.com/discourse/discourse/security/advisories/GHSA-gr5h-hm62-jr3j No Types Assigned https://github.com/discourse/discourse/security/advisories/GHSA-gr5h-hm62-jr3j Vendor Advisory Added CWE NIST CWE-79 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:*:*:* 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CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-37467
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-2023-37467
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.20832
percentile