> CVE-2026-5718 [HIGH]

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PUBLISHED
2026-04-17 18:16
MODIFIED
2026-04-17 18:16
CVSS_SCORE V3
8.1
EPSS (Prob. Exploit)
4.18%
Top 9.0%
🎯 NUCLEI TEMPLATE
DATA SOURCES:
NVD 🔗 2026-04-17 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 NUCLEI 🔗 2026-11-08

> DESCRIPTION

The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.3.9.6. This is due to insufficient file type validation that occurs when custom blacklist types are configured, which replaces the default dangerous extension denylist instead of merging with it, and the wpcf7_antiscript_file_name() sanitization function being bypassed for filenames containing non-ASCII characters. This makes it possible for unauthenticated attackers to upload arbitrary files, such as PHP files, to the server, which can be leveraged to achieve remote code execution.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EXPLOITABILITY
2.2
IMPACT
5.9

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-434

> CWE DETAILED DESCRIPTIONS

CWE-434: Unrestricted Upload of File with Dangerous Type - The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

> NUCLEI TEMPLATES

Des templates Nuclei sont disponibles pour scanner cette vulnérabilité.

🎯
CVE-2026-5718.yaml
http/cves/2026/CVE-2026-5718.yaml
Usage: nuclei -t http/cves/2026/CVE-2026-5718.yaml -u target.com

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/04/2026 18:16
Source: NVD
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-434: Unrestricted Upload of File with Dangerous Type - The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Total des modifications: 1 Dernière mise à jour: 6 months ago

> REFERENCES

https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-co...
https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-co...
https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-co...
https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-co...
https://plugins.trac.wordpress.org/changeset/3508522/drag-and-drop-multiple-file...
https://www.wordfence.com/threat-intel/vulnerabilities/id/38f95d40-a6d4-429c-987...
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