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CVE-2026-33656

CRITICAL · CVSS 9.1 EPSS %0.07 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-04-22T21:17:05.330 · Çekilme zamanı: 2026-05-22T18:01:17.810268+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

Tespit Edilen Sinyaller
poc
GitHub PoC Linkleri

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-33656
Severity
CRITICAL
CVSS
9.1
EPSS
%0.07

Orijinal NVD Açıklaması

EspoCRM is an open source customer relationship management application. Prior to version 9.3.4, EspoCRM's built-in formula scripting engine allowing updating attachment's sourceId thus allowing an authenticated admin to overwrite the `sourceId` field on `Attachment` entities. Because `sourceId` is concatenated directly into a file path with no sanitization in `EspoUploadDir::getFilePath()`, an attacker can redirect any file read or write operation to an arbitrary path within the web server's `open_basedir` scope. Version 9.3.4 fixes the issue.