Security readout for executives and security teams
Plain-English summary
CVE-2023-6557 is an information exposure issue in The Events Calendar WordPress plugin. Public visitors could potentially retrieve titles and IDs for draft, pending, or private posts. This is not code execution or full content theft in the provided evidence, but it can expose editorial plans, private event names, or unpublished business information.
Executive priority
Treat this as a moderate-priority confidentiality issue. Patch during the next normal security maintenance window, sooner for sites that use private or draft posts to track sensitive events, campaigns, customers, or internal plans.
Technical view
The vulnerability affects The Events Calendar versions up to and including 6.2.8.2. The wp_ajax_nopriv_tribe_dropdown route is reachable without authentication and lacks appropriate authorization checks, mapped to CWE-862. Reported impact is limited confidentiality exposure of post titles and IDs for non-public post states. CVSS v3.1 score is 5.3.
Likely exposure
Exposure is most likely on WordPress sites running The Events Calendar 6.2.8.2 or earlier with unpublished, pending, or private posts. Internet-facing sites are reachable by unauthenticated users, so the main business concern is disclosure of sensitive metadata rather than system compromise.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The issue is low complexity and requires no authentication or user interaction, so opportunistic scanning is plausible, but confirmed exploitation should not be assumed from the provided sources.
Researcher notes
The affected range is clear in the vulnerability description, but the structured affected metadata in the bundle appears incomplete. Available evidence supports unauthenticated metadata disclosure only. Do not expand impact to post body disclosure, privilege escalation, or code execution without additional vendor evidence.
Mitigation direction
- Update The Events Calendar to 6.2.9 or later after confirming vendor guidance.
- Audit unpublished, private, and pending post titles for sensitive information exposure.
- Restrict unnecessary public access to affected WordPress endpoints where feasible.
- Monitor vendor and Wordfence advisories for any revised remediation guidance.
Validation and detection
- Inventory WordPress sites using The Events Calendar and record installed versions.
- Confirm no production site runs The Events Calendar 6.2.8.2 or earlier.
- Review web logs for unexpected unauthenticated requests to tribe_dropdown-related AJAX paths.
- Check whether sensitive draft, pending, or private post titles existed during exposure.
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-2023-6557 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fc40196e-c0f3-4bc6-ac4b-b866902def61?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010104%40the-events-calendar%2Ftags%2F6.2.9&old=3010096%40the-events-calendar%2Ftags%2F6.2.9CVE reference
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.