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PatchSiren cyber security CVE debrief

CVE-2023-5443 EDM Informatics CVE debrief

CVE-2023-5443 is a high-severity information-disclosure issue in E-Invoice affecting versions before 2.1. According to NVD and USOM references, the flaw can leak account-related information through outbound error messages and alert signals, enabling account footprinting without authentication.

Vendor
EDM Informatics
Product
E-invoice
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2023-10-27
Original CVE updated
2026-05-21
Advisory published
2023-10-27
Advisory updated
2026-05-21

Who should care

Organizations running E-Invoice instances before 2.1, especially administrators, security teams, and anyone responsible for user-account protection or application error handling.

Technical summary

NVD lists the issue as affecting cpe:2.3:a:e-invoice_project:e-invoice with versionEndExcluding 2.1, and assigns CVSS 3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating a remotely reachable, unauthenticated confidentiality issue. USOM’s advisory maps the weakness to CWE-1320 and describes improper protection for outbound error messages and alert signals, which can disclose account-related information used for footprinting.

Defensive priority

High. The vulnerability is network-reachable, requires no privileges or user interaction, and is rated HIGH with confidentiality impact only, which makes it a strong candidate for rapid patching and external exposure review.

Recommended defensive actions

  • Upgrade E-Invoice to version 2.1 or later as soon as possible.
  • Review application error messages and alert signals to ensure they do not reveal account existence or other sensitive identifiers.
  • Check exposed endpoints and logs for signs of account-enumeration or footprinting activity around the disclosure window and afterward.
  • Validate that any authentication, registration, password reset, or lookup workflows return consistent, non-enumerable responses.
  • If the product was exposed externally before remediation, assess whether additional monitoring or user-notification steps are warranted.

Evidence notes

The NVD record for CVE-2023-5443 lists the affected range as E-Invoice versions before 2.1 and provides the CVSS vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. USOM references identify the issue as improper protection for outbound error messages and alert signals and associate it with CWE-1320. The advisory links in the source corpus are dated 2023-10-27, which is the CVE publication date used here.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-5443 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-5443

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2023-5443 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-5443

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.