Vulnerability Intelligence Report
North Grid Proself Improper Restriction of XML External Entity (XXE) Reference Vulnerability
CVE-2023-45727
Proself Enterprise/Standard Edition Ver5.62 and earlier, Proself Gateway Edition Ver1.65 and earlier, and Proself Mail Sanitize Edition Ver1.08 and earlier allow a remote unauthenticated attacker to conduct XML External Entity (XXE) attacks. By processing a specially crafted request containing malformed XML data, arbitrary files on the server containing account information may be read by the attacker.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
7.5
HIGH
Exploitability:3.9
Impact Score:3.6
EPSS Probability:3.54%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-611 ↗CWE-611 Improper Restriction of XML External Entity Reference
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| North Grid Corporation | Proself Enterprise/Standard Edition | Ver5.62 and earlier (affected) |
| North Grid Corporation | Proself Gateway Edition | Ver1.65 and earlier (affected) |
| North Grid Corporation | Proself Mail Sanitize Edition | Ver1.08 and earlier (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | JPCERT/CC · CERT · Japan |
| Reserved | 2023-10-11T07:32:42 |
| Published | 2023-10-18T09:01:12 |
| Last Updated | 2025-10-21T23:05:34 |
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