Security readout for executives and security teams
Plain-English summary
A visitor with the right WordPress permissions could be tricked into triggering an unintended EnvíaloSimple plugin action while authenticated. Sources describe integrity impact, not data theft or outage. The issue matters for WordPress sites using EnvíaloSimple versions through 2.2.
Executive priority
Treat as a scheduled remediation item for affected WordPress properties, with faster action for business-critical sites or privileged-user-heavy operations. Current evidence supports moderate urgency, not emergency response.
Technical view
CVE-2023-51416 is a CWE-352 CSRF vulnerability in the EnvialoSimple EnvíaloSimple WordPress plugin, package envialosimple-email-marketing-y-newsletters-gratis, affecting versions through 2.2. CVSS 3.1 is 6.5: network attack vector, low complexity, no attacker privileges, user interaction required, unchanged scope, high integrity impact, no confidentiality or availability impact.
Likely exposure
Exposure is limited to WordPress installations where the EnvíaloSimple plugin is installed at version 2.2 or earlier. The provided sources do not identify specific vulnerable actions, default configurations, or whether the plugin must be active.
Exploitation context
CISA KEV status is false in the provided bundle, and no cited source states active exploitation. The attack requires user interaction, consistent with CSRF, but the bundle does not provide exploit maturity or observed abuse evidence.
Researcher notes
The source bundle confirms CSRF, affected versions through 2.2, CVSS 6.5, and CWE-352. It does not identify the vulnerable endpoint, required victim role, patch version, proof-of-concept status, or exploit telemetry.
Mitigation direction
- Inventory WordPress sites for the EnvíaloSimple plugin and record installed versions.
- Check vendor, WordPress plugin, or Patchstack guidance for a fixed version or official workaround.
- Upgrade if an official fixed version is available for your deployment.
- Disable or remove the plugin where it is unused or no supported fix exists.
- Restrict administrative access and reinforce anti-phishing controls for privileged WordPress users.
Validation and detection
- Confirm whether envialosimple-email-marketing-y-newsletters-gratis is installed on each WordPress site.
- Verify installed plugin versions are above 2.2, if a fixed release exists.
- Review change-management records for plugin disablement, removal, or upgrade completion.
- Check vendor or Patchstack advisories for updated affected-version and remediation details.
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-352: 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 lookupCVE-2023-51416 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:R/S:U/C:N/I:H/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A: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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.