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CVE-2025-66547 Nextcloud Server users can modify tags on files that do not belong to them

🗓️ 05 Dec 2025 16:32:17Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 54 Views

Non-privileged users could modify tags on unauthorized files via bulk tagging; fixed in 31.0.1.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Nextcloud Server Authentication Bypass
19 Mar 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2025-66547 vulnerabilities
28 Jan 202613:17
–cgr
circl
Circl
CVE-2025-66547
5 Dec 202514:50
–circl
cnnvd
CNNVD
NextCloud Server security vulnerabilities
5 Dec 202500:00
–cnnvd
cve
CVE
CVE-2025-66547
5 Dec 202516:32
–cve
euvd
EUVD
EUVD-2025-201447
5 Dec 202516:32
–euvd
nextcloud
Nextcloud
Users can modify tags on files that do not belong to them
5 Dec 202508:00
–nextcloud
hackerone
Hacker One
Nextcloud: Users can modify tags on files that do not belong to them
16 Mar 202522:23
–hackerone
mend
Mend
CVE-2025-66547
5 Dec 202516:32
–mend
nvd
NVD
CVE-2025-66547
5 Dec 202517:16
–nvd
Rows per page
[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": "< 31.0.1",
        "status": "affected"
      }
    ]
  }
]

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