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CVE-2023-45727: North Grid Proself Improper Restriction of XML External Entity (XXE) Reference Vulnerability

criticalknown exploitedCVE-2023-45727
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
North Grid Proself Enterprise/Standard, Gateway, and Mail Sanitize contain an improper restriction of XML External Entity (XXE) reference vulnerability, which could allow a remote, unauthenticated attacker to conduct an XXE attack.

CSIRTS triage

vendor: North Gridproduct: Proself Enterprise/Standard, Gateway, Mail SanitizeOther
What
The vulnerability allows a remote, unauthenticated attacker to conduct an XXE attack due to improper restriction of XML External Entity references.
Who is affected
Users of North Grid Proself products are affected.
Urgency
Remediation is critical due to active exploitation and the severity of the vulnerability.
Action
Apply the latest security updates from North Grid.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2024-12-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-45727

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-45727coverage & exploitation statusNVD · CVE.org

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