CVE-2023-28833

highPriorität · verfolgen · 35EPSS 0.008 · 55. PerzentilEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.76% (55th) EPSS

CVSS 8.8 · high

Is it mine?

11 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · bewertet 2026-10-27

Nextcloud server is an open source home cloud implementation. In affected versions admins of a server were able to upload a logo or a favicon and to provided a file name which was not restricted and could overwrite files in the appdata directory. Administrators may have access to overwrite these files by other means but this method could be exploited by tricking an admin into uploading a maliciously named file. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users unable to upgrade should avoid ingesting logo files from untrusted sources.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–high · 2.4–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.12.4lowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.12.4lowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:Lsecondary · security-advisories@github.comAusnutzbarkeit 0.9 · Auswirkung 1.4

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-434USprimärCWE-22USCWE-22USCWE-434US

betroffene Produkte (11)

Betroffene Produkte und Versionsbereiche.

nextcloud security-advisories≤ < 24.0.10enisa_euvdEU
nextcloud security-advisories25.0.0, → 25.0.4enisa_euvdEU
Nextcloud GmbH Nextcloud Enterprise Server23.00 → 23.0.14fstec_bduRU
Nextcloud GmbH Nextcloud Enterprise Server24.0.0 → 24.0.10fstec_bduRU
Nextcloud GmbH Nextcloud Enterprise Server25.0.0 → 25.0.4fstec_bduRU
Nextcloud GmbH Nextcloud Server24.0.0 → 24.0.10fstec_bduRU
Nextcloud GmbH Nextcloud Server25.0.0 → 25.0.4fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
nextcloud nextcloud server23.0.0 → 23.0.14nvdUScpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
nextcloud nextcloud server24.0.0 → 24.0.10nvdUScpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
nextcloud nextcloud server25.0.0 → 25.0.4nvdUScpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

veröffentlicht 2023-03-30geändert 2026-06-17

verwandt (5,029)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-56291US	critical9.8OT kritisch	14.9% (97th)	KEV	2026-07-09
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1 - The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary f…
CVE-2026-56290US	critical9.8OT kritisch	30.9% (98th)	KEV	2026-06-29
Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitra…
CVE-2026-48939US	critical9.8OT kritisch	20.1% (97th)	KEV	2026-06-20
A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.
CVE-2026-48908US	critical9.8OT kritisch	88.5% (100th)	KEV	2026-06-20
A vulnerability in SP Page Builder for Joomla allows unauthenticated users to upload arbitrary files, ultimately resulting in the upload and execution of PHP code.
CVE-2025-52691US	—OT kritisch	85.7% (100th)	KEV	2025-12-29
Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code…

+5024 weitere

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

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