Security readout for executives and security teams
Plain-English summary
A WordPress Event Espresso 4 Decaf plugin issue may let an unauthenticated user misuse limited functionality that should require authorization. Published severity is low because impact is limited to integrity, with no stated confidentiality or availability impact. Confirm whether public WordPress sites run Event Espresso 4 Decaf through 4.10.44.decaf.
Executive priority
Handle during normal vulnerability management unless the plugin is exposed on high-value public sites. The published impact is low, but any authorization bypass on internet-facing WordPress should be inventoried and remediated promptly.
Technical view
CVE-2023-27437 is a CWE-862 Missing Authorization vulnerability in Event Espresso 4 Decaf, affecting versions through 4.10.44.Decaf. The CVSS 3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N, indicating network reachability, no privileges, no user interaction, high complexity, and low integrity impact.
Likely exposure
Exposure is limited to WordPress installations with the Event Espresso 4 Decaf plugin installed at version 4.10.44.decaf or earlier. The source bundle does not identify affected configurations beyond the plugin and version range.
Exploitation context
The source bundle does not report active exploitation, and CISA KEV status is false. Public details are limited; the advisory names a bypass or functionality misuse caused by missing authorization but does not provide exploit specifics.
Researcher notes
Evidence supports a missing authorization classification and low CVSS score, but public technical detail is sparse. Do not assume a specific vulnerable endpoint, exploit maturity, or fixed version unless confirmed by vendor or Patchstack guidance.
Mitigation direction
- Inventory WordPress sites for Event Espresso 4 Decaf installations.
- Upgrade or replace the plugin according to vendor or Patchstack guidance.
- Restrict administrative access to WordPress and plugin management interfaces.
- Monitor plugin-related changes until remediation is confirmed.
Validation and detection
- Confirm installed plugin name and version on each WordPress site.
- Flag Event Espresso 4 Decaf versions 4.10.44.decaf or earlier.
- Check vendor and Patchstack pages for fixed-version guidance.
- Review logs for unexpected plugin-related actions or configuration changes.
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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2023-27437 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
- Low
- CVSS
- 3.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/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:H/PR:N/UI:N/S:U/C:N/I:L/A:N2.21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.7LowVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.