Security readout for executives and security teams
Plain-English summary
CVE-2021-36723 describes a privacy exposure in Emuse eServices/eNvoice where weak identification controls and predictable IDs could let an attacker scrape personal files from the service. The business concern is unauthorized disclosure of private personal information, not system takeover.
Executive priority
Prioritize confirmation if the organization uses Emuse eServices/eNvoice for personal files. The severity is medium, but the data impact can be significant because the described weakness involves potential exposure of private personal information.
Technical view
The record maps to CWE-359 and carries CVSS 3.1 score 6.1, medium severity. Sources describe missing identification mechanisms and predictable identifiers enabling file scraping. The affected entry only names Emuse eServices/eNvoice in Production, with no CPEs or detailed fixed versions.
Likely exposure
Organizations using Emuse eServices/eNvoice production instances, especially where personal files are stored behind predictable identifiers. The sources do not provide product build numbers, CPEs, or deployment prerequisites, so asset owners must confirm exposure with vendor or deployment records.
Exploitation context
The source bundle does not cite active exploitation, and the CVE is not marked as CISA KEV. The described issue is plausible for unauthorized data collection if an exposed deployment allows access to personal files without strong identity or authorization checks.
Researcher notes
Evidence is limited. The description cites predictable IDs and absent identification mechanisms, while the CVSS vector lists local attack vector and user interaction. Treat affected scope and remediation status as unresolved unless confirmed by the vendor advisory.
Mitigation direction
- Check Emuse or gov.il advisory channels for official remediation guidance.
- Identify any production use of Emuse eServices/eNvoice in your environment.
- Restrict access to sensitive file endpoints while vendor guidance is confirmed.
- Review document access controls for authentication and authorization enforcement.
- Assess privacy incident response needs if exposure is confirmed.
Validation and detection
- Inventory deployments matching Emuse eServices/eNvoice Production.
- Review access logs for abnormal sequential or high-volume file requests.
- Confirm personal files are not reachable by predictable identifiers alone.
- Verify access requires authenticated, authorized user context.
- Document uncertainty where vendor version or patch data is unavailable.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-359: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-36723 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N1.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.gov.il/en/departments/faq/cve_advisoriesCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Private Personal Information to an Unauthorized Actor
Exposure of Private Personal Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.