CVE-2026-23697

Vtiger CRM before 8.4.0 contains an authenticated file upload vulnerability that allows low-privileged users to achieve remote code execution by uploading a .phar file containing arbitrary PHP code through the Documents module, bypassing the extension denylist in config.inc.php which omits the .phar extension. The uploaded file is stored with its original .phar extension under the web-accessible storage directory, and a misconfigured .htaccess using Apache 2.2 syntax is silently ignored on Apache 2.4 deployments, allowing unauthenticated HTTP requests to directly execute the uploaded PHP payload.

CVSS v4.0

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.00% chance of exploitation in the next 30 days, 60th percentile

Published

2026-07-07

Updated

2026-07-14

Proof-of-concept exploits (2)

• https://jivasecurity.com/writeups/vtiger-rce-phar-upload-cve-2026-23697
• JivaSecurity/VTIGER-CRM-RCE-CVE-2026-236970★ · 2026-07-07

References

• CVE Record
• NVD entry

Related

• CVE-2026-22666
• CVE-2026-23698
• CVE-2026-33656
• CVE-2026-23696
• CVE-2026-23645
• CVE-2026-2370