Security readout for executives and security teams
Plain-English summary
This affects WordPress sites using EventON calendar plugins. An unauthenticated attacker could change or remove post metadata, which may alter event content or disrupt site data. The issue is not listed in CISA KEV, and the provided sources do not show active exploitation.
Executive priority
Treat as a moderate-priority WordPress exposure. Prioritize internet-facing marketing, event, and customer sites because unauthenticated data changes can harm integrity, availability, and trust.
Technical view
CVE-2023-6158 is a missing authorization check in EventON's evo_eventpost_update_meta function. Affected versions are EventON Pro up to 4.5.4 and EventON Lite/free up to 2.2.7. The flaw allows unauthenticated arbitrary post meta modification or deletion; some parameters may permit content injection.
Likely exposure
Exposure is likely limited to WordPress sites with EventON Pro <= 4.5.4 or EventON Lite/free <= 2.2.7 installed and reachable publicly.
Exploitation context
The CVSS vector indicates network access, low complexity, no privileges, and no user interaction. Sources support unauthorized data modification and data loss, but not confirmed active exploitation.
Researcher notes
The core issue is CWE-862 missing authorization in evo_eventpost_update_meta. Provided evidence supports arbitrary post meta update/removal and possible content injection, but does not include exploit telemetry or detailed fixed-version confirmation beyond affected-version boundaries.
Mitigation direction
- Inventory WordPress sites for EventON Pro and EventON Lite/free installations.
- Update EventON beyond the affected versions using vendor or WordPress plugin guidance.
- If immediate updating is unavailable, disable the plugin until vendor guidance is applied.
- Review event posts and post metadata for unexpected changes.
- Track CVE-2024-0238 as a likely duplicate, not a separate remediation path.
Validation and detection
- Confirm installed EventON version on each WordPress site.
- Compare versions against Pro <= 4.5.4 and Lite/free <= 2.2.7.
- Review vendor changelog and WordPress Trac changeset for authorization fixes.
- In staging, verify metadata update actions require proper authorization.
- Check logs, revisions, and event content for suspicious metadata 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-2023-6158 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:N/S:U/C:N/I:L/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:N/I:L/A:L3.92.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/19f94c4f-145b-4058-aabd-06525fce3cea?source=cveCVE reference
- https://docs.myeventon.com/documentations/eventon-changelog/CVE reference
- https://plugins.trac.wordpress.org/changeset/3017578/eventon-lite/trunk/includes/admin/class-admin-ajax.phpCVE 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.