CVE-2026-33193CWE-79

Docmost vulnerable to stored XSS via MIME type spoofing

Medium · published April 14, 2026

CVSS v3.1
4.6
EPSS
0%
Percentile
13.2
In the wild
Unconfirmed
What it is

Docmost is open-source collaborative wiki and documentation software. Versions prior to 0.70.0 are vulnerable to a stored cross-site scripting (XSS) attack due to improper handling of MIME type spoofing (GHSL-2026-052). An attacker could exploit this flaw to inject malicious scripts, potentially compromising the security of users and data. Version 0.70.0 contains a patch.

The record
Technical detail
CVSS v3.1
4.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00231 · 13.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-14T21:39Z
EPSS history
Timeline
  • 14 APR 21:39Z
    Docmost vulnerable to stored XSS via MIME type spoofing
    cvelistv5