CVE Program Container

Answer in brief

CVE-2023-45727 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps northgrid/proself (generic), North Grid Corporation/Proself Enterprise/Standard Edition (generic), North Grid Corporation/Proself Gateway Edition (generic), North Grid Corporation/Proself Mail Sanitize Edition (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 18, 2023Updated Oct 21, 2025Source checked Sep 20, 2026First seen by HOL May 24, 2026Material review Oct 21, 2025

Upstream Advisory

Key facts

Risk: High
Exploitation: Known exploited
Affected software: 4 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps northgrid/proself (generic), North Grid Corporation/Proself Enterprise/Standard Edition (generic), North Grid Corporation/Proself Gateway Edition (generic), North Grid Corporation/Proself Mail Sanitize Edition (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
northgrid/proselfgeneric	0	Not reported
North Grid Corporation/Proself Enterprise/Standard Editiongeneric	Ver5.62 and earlier	Not reported
North Grid Corporation/Proself Gateway Editiongeneric	Ver1.65 and earlier	Not reported
North Grid Corporation/Proself Mail Sanitize Editiongeneric	Ver1.08 and earlier	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for northgrid/proself, North Grid Corporation/Proself Enterprise/Standard Edition, North Grid Corporation/Proself Gateway Edition.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 18, 2023
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 21, 2025
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
May 24, 2026
Added to CISA KEV
Dec 3, 2024
Evidence: source:kev:kev:kev:record

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.