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TI-2026-19081 Aliases CVE-2026-23697GHSA-3cpr-2h94-j6qj

Vtiger CRM < 8.4.0 Authenticated File Upload RCE via Documents Module

Priority HIGH 73CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00999 62nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Vtiger CRM (Vtiger): 8.4.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VtigerVtiger CRMup to 8.3.08.4.0Patch availableCNA
  • Vtiger CRM VendorVtiger Affected up to 8.3.0 Fixed in 8.4.0 Patch available CNA

Remediation

  • Fix · CNA Vtiger CRM (Vtiger) Fixed in 8.4.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23697
  2. 2026-10-03 Alias added: GHSA-3cpr-2h94-j6qj

References

Exploit 1

Other 1

  • TI-2013-02806 vtiger CRM 5.4.0 and earlier contain a PHP Code Injection Vulnerability in 'vtigerolservice.php'. CVSS 3.1CRITICAL 9.8
  • TI-2013-02807 vtiger CRM 5.4.0 and earlier contain an Authentication Bypass Vulnerability due to… CVSS 3.1CRITICAL 9.8
  • TI-2024-29992 A reflected cross-site scripting (XSS) vulnerability in the viewname parameter in the… CVSS 3.1CRITICAL 9.6
  • TI-2024-29991 A reflected cross-site scripting (XSS) vulnerability in the parent parameter in the index… CVSS 3.1CRITICAL 9.6
  • TI-2024-29990 A reflected cross-site scripting (XSS) vulnerability in the tag parameter in the index… CVSS 3.1CRITICAL 9.6
  • TI-2023-20164 SQL injection vulnerability in Vtiger CRM v.7.5.0 allows a remote authenticated attacker… CVSS 3.1HIGH 8.8
See all 73 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences