CASCACascade Atlas

Evidence dossier

CVE-2023-45727

CVE-2023-45727

62.5–77.5Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Oct 18, 2023
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS3.54%

2026-07-18 · v2026.06.15 · percentile 88.0%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

jpcertoriginal assertion
container

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 KEVoriginal assertion
observed_exploitation

North Grid Proself Improper Restriction of XML External Entity (XXE) Reference Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.035420000000; percentile 0.879850000000

Applicability

Cited product scope

Trace impact →
northgridproself
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "5.62"}]unknown
northgridproself
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "1.65"}]unknown
northgridproself
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "5.62"}]unknown
northgridproself
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "1.08"}]unknown
North Grid CorporationProself Enterprise/Standard Edition
[{"status": "affected", "version": "Ver5.62 and earlier"}]unknown
North Grid CorporationProself Gateway Edition
[{"status": "affected", "version": "Ver1.65 and earlier"}]unknown
North Grid CorporationProself Mail Sanitize Edition
[{"status": "affected", "version": "Ver1.08 and earlier"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:northgrid:proself:*:*:*:*:enterprise:*:*:*; end excluding 5.63supported
Unknown vendorUnknown product
cpe:2.3:a:northgrid:proself:*:*:*:*:gateway:*:*:*; end excluding 1.66supported
Unknown vendorUnknown product
cpe:2.3:a:northgrid:proself:*:*:*:*:mail_sanitize:*:*:*; end excluding 1.09supported
Unknown vendorUnknown product
cpe:2.3:a:northgrid:proself:*:*:*:*:standard:*:*:*; end excluding 5.63supported

Assessments

CVSS by origin

7.5
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.