CVE-2026-33534

CVE-2026-33534 - EspoCRM 9.3.3 Authenticated SSRF Authenticated SSRF proof-of-concept for EspoCRM 9.3.3 via alternative IPv4 loopback notation in the /api/v1/Attachment/fromImageUrl endpoint. Summary EspoCRM 9.3.3 blocks direct loopback URLs such as http://127.0.0.1/..., but the server-side fetch...

Exploit for Server-Side Request Forgery in Espocrm

CVE-2026-33534 - EspoCRM 9.3.3 Authenticated SSRF Authenticat...

CVE-2026-33659 EspoCRM: SSRF via DNS Rebinding in Attachment fromImageUrl Endpoint Allows Internal Network Access

EspoCRM is an open source customer relationship management application. In versions 9.3.3 and below, the POST /api/v1/Attachment/fromImageUrl endpoint is vulnerable to Server-Side Request Forgery SSRF via a DNS rebinding TOCTOU condition. Host validation uses dnsgetrecord but the actual HTTP...

CVE-2026-33534 EspoCRM has authenticated SSRF via internal-host validation bypass using alternative IPv4 notation

EspoCRM is an open source customer relationship management application. Versions 9.3.3 and below have an authenticated Server-Side Request Forgery SSRF vulnerability that allows bypassing the internal-host validation logic by using alternative IPv4 representations such as octal notation e.g.,...

CVE-2026-33659: Server-Side Request Forgery (SSRF)

EspoCRM is an open source customer relationship management application. In versions 9.3.3 and below, the POST /api/v1/Attachment/fromImageUrl endpoint is vulnerable to Server-Side Request Forgery SSRF via a DNS rebinding TOCTOU condition. Host validation uses dnsgetrecord but the actual HTTP...

CVE-2026-33534: Server-Side Request Forgery (SSRF)

EspoCRM is an open source customer relationship management application. Versions 9.3.3 and below have an authenticated Server-Side Request Forgery SSRF vulnerability that allows bypassing the internal-host validation logic by using alternative IPv4 representations such as octal notation e.g.,...

CVE-2023-46736

EspoCRM is an Open Source CRM Customer Relationship Management software. In affected versions there is Server-Side Request Forgery SSRF vulnerability via the upload image from url api. Users who have access to the /Attachment/fromImageUrl endpoint can specify URL to point to an internal host. Eve...

CVE-2023-46736: Server-Side Request Forgery (SSRF)

EspoCRM is an Open Source CRM Customer Relationship Management software. In affected versions there is Server-Side Request Forgery SSRF vulnerability via the upload image from url api. Users who have access to the /Attachment/fromImageUrl endpoint can specify URL to point to an internal host. Eve...