CVE-2026-45267CWE-200CWE-862

Nextcloud: Missing permission check for from submissions

Medium · published June 1, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
42.3
In the wild
Unconfirmed
What it is

Nextcloud is an open source content collaboration platform. Prior to version 5.2.6, a missing permissions check allowed users to request reading form submissions of other users. This issue has been patched in version 5.2.6.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00506 · 42.3th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-862 · Missing Authorization
Published
2026-06-01T16:40Z
EPSS history
Timeline
  • 01 JUN 16:40Z
    Nextcloud: Missing permission check for from submissions
    cvelistv5