CVE-2023-2796
Published: 10 July 2023
Summary
CVE-2023-2796 is a medium-severity Missing Authorization (CWE-862) vulnerability in Myeventon Eventon. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 1.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The EventON WordPress plugin before version 2.1.2 is affected by CVE-2023-2796, a missing authentication and authorization flaw in the eventon_ics_download AJAX action. The vulnerability, assigned CWE-862 and rated 5.3 on CVSS 3.1, permits unauthenticated access to private or password-protected calendar events when an attacker supplies a guessed numeric event identifier.
Unauthenticated remote attackers can exploit the issue over the network to retrieve event details that should otherwise remain restricted. No user interaction or privileges are required, and the impact is limited to confidentiality exposure without affecting integrity or availability.
Public references including WPScan and Packet Storm entries document proof-of-concept requests that demonstrate direct object reference against the AJAX endpoint, but they contain no explicit mitigation guidance beyond the implied need to update the plugin.
EPSS for the CVE reached a peak of 0.7904 on 2025-12-11 before receding to the current value of 0.7230, indicating sustained but not sharply escalating external interest since disclosure. No confirmed in-the-wild exploitation campaigns are noted in the supplied data.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-34252
Vulnerability details
The EventON WordPress plugin before 2.1.2 lacks authentication and authorization in its eventon_ics_download ajax action, allowing unauthenticated visitors to access private and password protected Events by guessing their numeric id.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring an access control policy ensures authorization checks are defined and applied for critical functions.
Reviews of access controls detect missing authorization checks on critical functions or resources.
Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.
Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.
Mandating authorization prior to allowing remote connections addresses missing authorization for remote access.
Mandating authorization before wireless connections are allowed prevents missing authorization for wireless access.
The control requires authorization before allowing mobile device connections, directly mitigating missing authorization for system access.
Requiring approvals for account creation and specifying authorizations ensures authorization is not missing for system access.