CVE-2023-36473CWE-79

CSP nonce reuse vulnerability in Discourse

Medium · published July 13, 2023

CVSS v3.1
6.8
EPSS
0%
Percentile
32.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00397 · 32.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2023-07-13T20:57Z
EPSS history
Timeline
  • 13 JUL 20:57Z
    CSP nonce reuse vulnerability in Discourse
    cvelistv5