Security readout for executives and security teams
Plain-English summary
This affects WordPress sites using Post SMTP Mailer/Email Log through version 2.8.6. The issue is missing authorization on an API, meaning the plugin may allow actions that should require permission. The CVSS score is high because exploitation is network reachable, low complexity, and requires no login or user interaction.
Executive priority
Treat this as a high-priority WordPress plugin exposure review. Prioritize public WordPress sites and sites using the plugin for business email workflows, because the documented impact includes high integrity risk without authentication.
Technical view
CVE-2023-52233 is a CWE-862 missing authorization flaw in the Post SMTP Mailer/Email Log WordPress plugin, package post-smtp, affecting versions through 2.8.6. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L, indicating unauthenticated remote reachability with high integrity impact.
Likely exposure
Exposure is likely on internet-facing WordPress sites running Post SMTP Mailer/Email Log version 2.8.6 or earlier with the plugin active. The provided sources do not identify affected hosting platforms beyond WordPress plugin deployments.
Exploitation context
The source bundle does not state active exploitation, and KEV is false. Risk remains meaningful because the CVSS vector indicates no authentication or user interaction is required, but available evidence does not confirm exploit availability or attacks in the wild.
Researcher notes
The available evidence identifies broken access control on an API but does not provide endpoint details, proof of concept, fixed version, or exploit status. Avoid assuming active exploitation or specific attack outcomes beyond the CVSS impact and CWE classification.
Mitigation direction
- Inventory WordPress sites for the post-smtp plugin.
- Check installed plugin versions against the affected range through 2.8.6.
- Consult vendor, CVE, and Patchstack guidance for a fixed version.
- Update if a fixed version is available from trusted sources.
- Disable or remove the plugin if no supported fix is available.
Validation and detection
- Confirm whether Post SMTP Mailer/Email Log is installed and active.
- Record the installed plugin version for each WordPress site.
- Review plugin-related access logs for unusual unauthenticated API activity.
- Verify remediation by confirming no active deployment remains on version 2.8.6 or earlier.
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-2023-52233 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
- High
- CVSS
- 8.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
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:U/C:L/I:H/A:L3.94.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.6HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
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.