CVE-2026-40500

MEDIUM

6.8

Description

ProcessWire CMS version 3.0.255 and prior contain a server-side request forgery vulnerability in the admin panel's 'Add Module From URL' feature that allows authenticated administrators to supply arbitrary URLs to the module download parameter, causing the server to issue outbound HTTP requests to attacker-controlled internal or external hosts. Attackers can exploit differentiable error messages returned by the server to perform reliable internal network port scanning, host enumeration across RFC-1918 ranges, and potential access to cloud instance metadata endpoints.

Details CVE

Score CVSS v3.16.8

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisHIGH

Interaction utilisateurNONE

Publie4/15/2026

Derniere modification4/17/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-918

References

https://gist.github.com/thepiyushkumarshukla/7514e5eed526fd9d20fcfc42ce8d0a82(disclosure@vulncheck.com)

https://processwire.com/(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/processwire-cms-ssrf-via-add-module-from-url(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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