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CVE-2026-23697

Vtiger CRM < 8.4.0 Authenticated File Upload RCE via Documents Module

Published: Jul 7, 2026Updated: Jul 8, 2026 Sources: CVE List NVDCWE-434
8.8HIGH
NVD MITRE
EPSS Score
1.0%
Top 39.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-434

Affected Products

Vtiger
commercialaka crm, vtiger crm
Vtiger CRMOn-premWeb App
Enterprise Software / crm

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://jivasecurity.com/writeups/vtiger-rce-phar-upload-cve-2026-23697
jivasecurity.com
https://www.vtiger.com/
vtiger.com
https://www.vulncheck.com/advisories/vtiger-crm-authenticated-file-upload-rce-via-documents-module
vulncheck.com

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