Security readout for executives and security teams
Plain-English summary
WeGIA versions before 3.6.5 contain a critical flaw in database restoration. If an attacker reaches administrative functionality, sources say they can execute operating system commands on the server using a specially crafted backup filename. This can lead to full compromise of confidentiality, integrity, and availability.
Executive priority
Treat as urgent for any organization using WeGIA. The issue enables server-level compromise once administrative functionality is reached, and a fixed version is available. Prioritize upgrade and exposure review.
Technical view
CVE-2026-28409 is CWE-78 OS command injection in LabRedesCefetRJ WeGIA before 3.6.5. The vulnerable path is the database restoration feature. The advisory describes remote code execution through command injection during backup handling. CVSS is 10.0, network exploitable, low complexity, no user interaction, with high impact across CIA.
Likely exposure
Organizations running WeGIA below 3.6.5 are affected. Exposure is higher where WeGIA administrative or restoration functions are reachable over the network. The source does not provide CPEs or deployment-specific indicators.
Exploitation context
The source states administrative access is needed, and notes it may be obtained through a previously reported authentication bypass. No CISA KEV listing or cited source in the bundle confirms active exploitation in the wild.
Researcher notes
Evidence is limited to the CVE record and GitHub advisory. Do not assume exploitation beyond the described vulnerable restoration workflow. The separate authentication bypass is referenced but not detailed in this source bundle.
Mitigation direction
- Upgrade WeGIA to version 3.6.5 or later.
- Review the GitHub security advisory for vendor guidance.
- Restrict network access to WeGIA administrative interfaces.
- Limit database restoration privileges to trusted administrators.
- Investigate related authentication bypass exposure if applicable.
Validation and detection
- Inventory WeGIA deployments and confirm installed versions.
- Verify affected systems are upgraded to 3.6.5 or later.
- Review logs for unusual database restoration activity.
- Check for suspicious backup filenames or unexpected restore attempts.
- Confirm administrative interfaces are not broadly internet-accessible.
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-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-28409 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
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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:C/C:H/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5m5g-q2vv-rv3rCVE 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.