Security readout for executives and security teams
Plain-English summary
A vulnerable EventON WordPress plugin can let an attacker change post metadata if they can lure an authenticated site administrator into taking an action. This is not a remote no-click takeover, but it can affect content integrity on WordPress sites using affected EventON versions.
Executive priority
Prioritize patching during the next regular WordPress maintenance window, sooner for sites where EventON manages business-critical event content. Treat as an integrity risk, not a confirmed active exploitation emergency based on provided evidence.
Technical view
CVE-2023-6242 is a CSRF issue caused by missing or incorrect nonce validation in the evo_eventpost_update_meta function. A forged request can update arbitrary post metadata when an administrator is tricked into interacting with attacker-controlled content. CVSS is 6.5 with high integrity impact.
Likely exposure
Exposure is limited to WordPress sites running EventON Free through 2.2.7 or EventON Pro through 4.5.4. Sites with active administrators and public-facing WordPress admin surfaces have higher practical risk.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitation requires user interaction by a site administrator, which lowers immediacy but remains realistic through phishing or malicious links.
Researcher notes
Key validation centers on nonce enforcement around evo_eventpost_update_meta and whether arbitrary post metadata can be changed through administrator-induced requests. Evidence supports affected version ranges and CSRF root cause, but provided sources do not establish real-world exploitation.
Mitigation direction
- Upgrade EventON Free beyond 2.2.7 and EventON Pro beyond 4.5.4 where available.
- Review the EventON changelog and WordPress plugin guidance for the vendor-supported fixed version.
- Disable the plugin temporarily if an upgrade path is unavailable or cannot be validated.
- Restrict administrator use to trusted sessions and reduce unnecessary administrator accounts.
- Monitor for unexpected event or post metadata changes.
Validation and detection
- Inventory WordPress sites for EventON Free and Pro installations.
- Confirm installed EventON versions against the affected ranges in the CVE record.
- Check whether nonce validation changes from the referenced WordPress Trac commits are present.
- Review WordPress logs for suspicious metadata updates around administrator sessions.
- Confirm administrators have not reported unexpected event content 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-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-2023-6242 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
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c8e9a333-a6b7-4b5e-93c1-b95566e5d6fb?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
- https://plugins.trac.wordpress.org/changeset/3017939CVE 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.
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.