CVE-2026-45543
Last modified
CVE-2026-45543 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Nextcloud is an open source content collaboration platform. From version 4.3.0 to before version 5.2.7, a removed collaborator retains unauthorized read access to uploaded respondent files for the affected form. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
Nextcloud is an open source content collaboration platform. From version 4.3.0 to before version 5.2.7, a removed collaborator retains unauthorized read access to uploaded respondent files for the affected form. The scope is limited to uploaded files for forms where that user previously had results access. This issue has been patched in version 5.2.7.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Forms | >= 4.3.0, < 5.2.7 |
References
- https://github.com/nextcloud/forms/pull/3291Issue Tracking, Patch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q4fw-6jf8-5vhhMitigation, Vendor Advisory
- https://hackerone.com/reports/3617352Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
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