CVE-2023-4478CWE-74

Parameter tampering in the registration resulting in blocked accounts to be created

Medium · published August 25, 2023

CVSS v3.1
4.3
EPSS
1%
Percentile
42.2
In the wild
Unconfirmed
What it is

Mattermost fails to restrict which parameters' values it takes from the request during signup allowing an attacker to register users as inactive, thus blocking them from later accessing Mattermost without the system admin activating their accounts.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00504 · 42.2th percentile
Weakness
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Published
2023-08-25T09:06Z
EPSS history
Timeline
  • 25 AUG 09:06Z
    Parameter tampering in the registration resulting in blocked accounts to be created
    cvelistv5