Vtiger CRM < 8.4.0 Authenticated File Upload RCE via Documents Module
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 1.0%
from disclosure to weapon0 days
Published on NVDJul 7
1st PoCJul 7
exploitation probability
1.0%top 40% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Vtiger · Vtiger CRMpublic PoCs found — 2
githubgithub.com/JivaSecurity/VTIGER-CRM-RCE-CVE-2026-23697★ 0cve_referencejivasecurity.com/writeups/vtiger-rce-phar-upload-cve-2026-23697unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.