CVE-2023-36473

MEDIUM

Discourse < 3.0.5 - Cross-Site Scripting via CSP Nonce Reuse

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 6.8
EPSS 0.0017
EPSS Percentile 37.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (5)
discourse/discourse 1.1.0 beta1 (9 CPE variants)
discourse/discourse 1.2.0 beta1 (9 CPE variants)
discourse/discourse 1.3.0 beta1 (11 CPE variants)
discourse/discourse 1.4.0 beta1 (12 CPE variants)
discourse/discourse 1.5.0 beta1 (9 CPE variants)
Published Jul 13, 2023
Tracked Since Feb 18, 2026