Unauthenticated file disclosure via XML external entities
Published Oct 18, 2023 · Updated Oct 21, 2025
XXE in North Grid Proself Enterprise/Standard 5.62, Gateway 1.65, and Mail Sanitize 1.08 and earlier allows remote attackers to read server files. The updater-after-reboot XML process accepts attacker-controlled entity declarations and dereferences local file paths during parsing. No authentication or user interaction is required; successful exploitation exposes account information and other readable server files.
Summary
What happened
XXE in North Grid Proself Enterprise/Standard 5.62, Gateway 1.65, and Mail Sanitize 1.08 and earlier allows remote attackers to read server files. The updater-after-reboot XML process accepts attacker-controlled entity declarations and dereferences local file paths during parsing. No authentication or user interaction is required; successful exploitation exposes account information and other readable server files.
The record
- CVE
- CVE-2023-45727
- Published
- Oct 18, 2023
- Updated
- Oct 21, 2025
- Vendor
- North Grid Corporation
- Product
- Proself Enterprise/Standard Edition
- Classifications
- CWE-611, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 18, 2023CVE publishedPublication date reported by the CVE source.
- Dec 3, 2024Exploitation reportedCISA Known Exploited Vulnerabilities entry
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.08
- Affected versionversion=0 <=1.65
- Affected versionversion=0 <=5.62
- Affected versionversion=Ver5.62 and earlier
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Vendor-confirmed Proself attacksreported exploitation
- CISA Known Exploited Vulnerabilities entryknown exploited catalog
Technologies
Your stack
See the directory against your own environment.
Your stack
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