Skip to content

CVE-2023-45727

XML External Entity (XXE): Is CVE-2023-45727 real, exploitable, or a false positive? Here's the community verdict.

☆ Watch

signals

public sources

Exploited in wild
Yes
CISA KEV
Public exploit
None known
Metasploit/EDB/PoC
Base severity
7.5 High
CVSS
Exploitation prob.
4%
FIRST EPSS
Weakness
CWE-611 · XML External Entity (XXE)
CWE

Confirmed exploited in the wild. Patch this first, regardless of the base score.

baseline read

auto · not a community verdict

Real — exploited in the wild

CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.

Based on CISA KEV

Confirm or dispute →

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

References

NVD MITRE CVE.org CISA KEV

Published

Embed this verdict
TruePositive verdict for CVE-2023-45727
Markdown
[![TruePositive verdict](https://www.truepositive.app/cve/CVE-2023-45727/badge.svg)](https://www.truepositive.app/cve/CVE-2023-45727)
HTML
<a href="https://www.truepositive.app/cve/CVE-2023-45727"><img src="https://www.truepositive.app/cve/CVE-2023-45727/badge.svg" alt="TruePositive verdict for CVE-2023-45727"></a>

Live badge that updates automatically as the community verdict changes.

Community ground truth

Be the first practitioner to weigh in

So far this is only TruePositive's editorial baseline from public sources. Add your real-world verdict below — it becomes the signal the next person triaging this relies on.

🥇 The first 50 practitioners to contribute earn a Founding Contributor badge.

In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

No account needed. Anonymous verdicts post as an unverified signal. Log in to make yours verified and earn reputation.

Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    North Grid Proself Improper Restriction of XML External Entity (XXE) Reference Vulnerability — 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. Listed in the CISA KEV catalog (added 2024-12-03) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~4%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · TruePositive EditorialCurated

    Required action for North Grid Proself: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2024-12-24. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Add a field note or remediationoptional
Note type

What are you adding?

Markdown supported · minimum 20 characters.

Related CVEs

Same weakness: CWE-611 · XML External Entity (XXE).