BottleCRM through 1.14.5 Server-Side Template Injection via Account Email create_mail

Advisories

BottleCRM through 1.14.5 Server-Side Template Injection via Account Email create_mail

Severity: medium
Date: 10/14/2026
Affecting: BottleCRM <= 1.14.5
CVE: CVE-2026-110593
CWE: CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
References: https://github.com/Django-CRM/Django-CRM/issues/826
https://github.com/Django-CRM/Django-CRM/blob/v1.14.5/backend/accounts/tasks.py#L45
Credit: Aaron Amran Bin Amiruddin (@aaronamran)
Description: BottleCRM through 1.14.5 contains a server-side template injection vulnerability in the send_email Celery task, which compiles the user-supplied AccountEmail message_body with django.template.Template(). Authenticated organization members can submit template tags through POST /api/accounts/<id>/create_mail/ to disclose the rendering context and loaded Python modules, or block the shared Celery worker with nested loops.

Ready to get Started?

Explore VulnCheck, a next-generation Cyber Threat Intelligence platform, which provides exploit and vulnerability intelligence to help you prioritize and remediate vulnerabilities that matter.

Vulnerability Prioritization
Prioritize vulnerabilities that matter based on the threat landscape and defer vulnerabilities that don't.
Early Warning System
Real-time alerting of changes in the vulnerability landscape so that you can take action before the attacks start.

Schedule a Demo