Security readout for executives and security teams
Plain-English summary
Delta Electronics DIAEnergie 1.7.5 and earlier has a stored cross-site scripting flaw. An unauthenticated attacker can place arbitrary code in an alarm group name field, creating integrity risk when the application later renders that stored value.
Executive priority
Prioritize remediation where DIAEnergie is reachable beyond a trusted operational network. The issue enables unauthorized stored content changes, which can undermine operator trust and application integrity.
Technical view
The issue is CWE-79 stored XSS in DIAE_HandlerAlarmGroup.ashx via the name parameter. The CVSS 3.1 score is 7.5, network exploitable, low complexity, no privileges required, and rated high for integrity impact.
Likely exposure
Exposure is likely limited to organizations operating Delta Electronics DIAEnergie, especially version 1.7.5 or earlier. Internet-reachable or broadly accessible DIAEnergie instances would carry higher urgency.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. The flaw is notable because the source describes unauthenticated network injection into a stored application field.
Researcher notes
Evidence is limited to the CVE description and CISA ICS advisory reference in the bundle. Do not assume broader Delta product impact, exploit availability, or a specific patch unless confirmed in vendor guidance.
Mitigation direction
- Check Delta and CISA advisory guidance for the current vendor-supported fix or mitigation.
- Inventory DIAEnergie deployments and identify systems running version 1.7.5 or earlier.
- Restrict access to DIAEnergie interfaces to trusted management networks.
- Review application data for suspicious alarm group names or unexpected script-like content.
Validation and detection
- Confirm deployed DIAEnergie versions against the advisory scope.
- Verify whether DIAE_HandlerAlarmGroup.ashx is reachable from untrusted networks.
- Review logs for unauthenticated requests modifying alarm group names.
- Check stored alarm group records for unexpected markup or script-like values.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-44471 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-238-03CVE reference · x_refsource_MISC
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.