Security readout for executives and security teams
Plain-English summary
CVE-2026-1477 is a critical SQL injection issue in Quatuor Evaluación de Desempeño (EDD). An unauthenticated remote attacker could potentially use specific request parameters to make the database disclose sensitive information through external channels. Organizations using this product should treat it as urgent because the CVSS score is 9.3 and all listed versions are affected.
Executive priority
High priority. This is a critical, unauthenticated SQL injection affecting a performance evaluation application that may store sensitive employee or business data. If your organization uses Quatuor EDD, rapidly confirm exposure and seek vendor remediation guidance.
Technical view
The vulnerability is CWE-89 out-of-band SQL injection in /evaluacion_competencias_evalua_old.aspx, affecting the Id_usuario and Id_evaluacion parameters. The CVSS 4.0 vector indicates network access, low complexity, no privileges, and no user interaction. The reported impact is high confidentiality and integrity impact, with low availability impact.
Likely exposure
Exposure is limited to organizations running Quatuor Evaluación de Desempeño (EDD), especially if the affected ASPX endpoint is reachable over a network. The source states all versions are affected, but does not provide deployment prevalence, internet exposure data, or specific vulnerable builds.
Exploitation context
The source describes potential extraction of database information through out-of-band channels. No cited source or KEV listing confirms active exploitation. The vulnerability is still concerning because exploitation requires no privileges or user interaction according to the CVSS vector.
Researcher notes
Evidence is limited to the CVE record and INCIBE advisory. No patch version, workaround, proof-of-concept, or exploitation-in-the-wild claim is included in the provided sources. Avoid assuming affected hosting models or product variants beyond Quatuor Evaluación de Desempeño (EDD).
Mitigation direction
- Check INCIBE and vendor guidance for patched versions or official mitigations.
- Restrict network access to the EDD application where business operations allow.
- Monitor database and application logs for unusual outbound interaction patterns.
- Inventory EDD deployments and prioritize externally reachable instances.
Validation and detection
- Confirm whether Quatuor EDD is deployed in the environment.
- Identify whether /evaluacion_competencias_evalua_old.aspx is reachable.
- Review exposure of EDD from internet, partner, and internal networks.
- Check vendor or INCIBE advisories for version-specific remediation status.
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-2026-1477 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.