CVE-2023-46304
Vtiger Crm 7.5.0
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-46304 is a high-severity Injection (CWE-74) vulnerability in Vtiger Vtiger Crm. Its CVSS base score is 8.1 (High).
Operationally, ranked in the top 24% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2023-46304 affects Vtiger CRM version 7.5.0 in the file modules/Users/models/Module.php. The flaw stems from an unprotected endpoint that permits writing arbitrary PHP code into the config.inc.php configuration file, which is loaded and executed on every page request. The issue is tracked under CWE-74 and carries a CVSS 3.1 score of 8.1.
A remote authenticated attacker can exploit the endpoint to inject and persist PHP payloads without needing additional user interaction or special network positioning beyond standard HTTP access. Successful exploitation grants the attacker the ability to execute arbitrary code in the context of the web application on subsequent page loads, potentially leading to full system compromise.
Public references include a vendor commit that addresses the unprotected write path and a proof-of-concept repository demonstrating the injection technique. The associated EPSS score has remained flat at 0.2076 since disclosure, indicating no observed surge in exploitation interest.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-50526
Vulnerability Data
modules/Users/models/Module.php in Vtiger CRM 7.5.0 allows a remote authenticated attacker to run arbitrary PHP code because an unprotected endpoint allows them to write this code to the config.inc.php file (executed on every page load).
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SI-10 directly requires validation of information inputs to reject malformed or special-element content before it reaches downstream parsers.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Logging supports detection of injection attempts but does not prevent the weakness.
Monitoring activities can identify active injection attacks after they occur.
A.8.25 mandates a secure SDLC process that includes secure coding guidelines, security requirements, checkpoints, testing (scans/penetration), and developer training to reduce injection flaws, but does not itself enforce or guarantee neutralization of special elements at runtime.
Application security requirements explicitly call for controls against injection attacks in software design.
A.8.27 mandates security-by-design principles (including distrust external input, data validation/sanitization, secure architecture layers, and design reviews against attack patterns) that reach injection when applied to output construction; this stops exploitation for a minority slice (e.g. where principles drive sanitization) but leaves most code-level injection defects untouched without further implementation rigor.
Secure coding standards require proper neutralization of special elements, directly addressing CWE-74.
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-74, a class-level weakness, and none of its children carries one either.