CVE-2021-29447

mediumPriorität · beachten · 66EPSS 0.857 · 100. PerzentilExploit · PoCEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
23 exploits · PoC
Likely / severe?
85.7% (100th) EPSS
CVSS 4 · medium
Is it mine?
10 products
Prüfe deine Angriffsfläche
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · bewertet 2026-10-27

Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.

01

cvss

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

7.1
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 4–7.1

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 8 · Auswirkung 2.9
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 3.6
v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU
v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:Nsecondary · ENISA EU
v3.17.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:Nsecondary · security-advisories@github.comAusnutzbarkeit 2.8 · Auswirkung 4.2
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)
02

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-611USprimärCWE-611US
03

Exploits (23)

Öffentlicher Proof-of-Concept- und Exploit-Code.

04

betroffene Produkte (10)

Betroffene Produkte und Versionsbereiche.

05

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

  • BIT-wordpress-2021-29447WordPress Authenticated XXE attack when installation is running PHP 82024-03-06vendor · osvUS

    Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.

  • BIT-wordpress-multisite-2021-29447WordPress Authenticated XXE attack when installation is running PHP 82024-03-06vendor · osvUS

    Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled.

06

auch bekannt als (6)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bduosvnvdNVDCVE.orgMITRE
veröffentlicht 2021-04-15geändert 2026-06-17
09

Referenzen (28)

Externe Belege — Patches, Meldungen, Analysen.

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