Security readout for executives and security teams
Plain-English summary
CVE-2026-1476 is a critical SQL injection issue in Quatuor Evaluación de Desempeño (EDD). A remote unauthenticated attacker could use the Id_usuario parameter to extract sensitive database information through external channels. The sources list all versions as affected, but do not name a patch or confirmed exploitation.
Executive priority
Treat this as urgent for any organization running Quatuor EDD, especially if externally accessible. The main business risk is confidential HR or performance data exposure. Confirm product presence, reduce exposure, and monitor for signs of abuse while awaiting or applying vendor guidance.
Technical view
The vulnerability is CWE-89 out-of-band SQL injection in /evaluacion_acciones_ver_auto.aspx via the Id_usuario parameter. CVSS 4.0 score is 9.3, with network attack vector, low complexity, no privileges, and no user interaction. Reported impacts include high confidentiality and integrity impact, and low availability impact.
Likely exposure
Organizations using Quatuor Performance Evaluation / Evaluación de Desempeño (EDD) should assume exposure, because the CVE record lists all versions as affected. Risk is highest if the application is reachable from the internet or untrusted networks.
Exploitation context
The sources describe remote, unauthenticated exploitation potential, but do not provide evidence of active exploitation. The CVE is not listed as KEV in the provided data. Out-of-band SQL injection can be harder to detect because data may leave through external channels rather than application responses.
Researcher notes
Evidence is limited to the CVE data and INCIBE advisory reference. The affected product is Quatuor Evaluación de Desempeño (EDD), all versions. No patch, workaround, exploit publication, or active exploitation confirmation is included in the provided sources.
Mitigation direction
- Check Quatuor and INCIBE guidance for an official fix or workaround.
- Identify and prioritize any internet-facing EDD instances.
- Restrict EDD access to trusted networks until vendor guidance is applied.
- Review database and network egress controls for unexpected external callbacks.
- Increase monitoring around EDD requests and database outbound activity.
Validation and detection
- Inventory systems running Quatuor Evaluación de Desempeño (EDD).
- Confirm whether /evaluacion_acciones_ver_auto.aspx is reachable from untrusted networks.
- Review logs for suspicious access involving the Id_usuario parameter.
- Check database and network telemetry for unusual outbound connections.
- Track CVE and INCIBE updates for patch or mitigation information.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 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-2026-1476 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
- 9.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA: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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source materials
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 Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.