CVE-2022-2373
Published: 29 August 2022
Summary
CVE-2022-2373 is a medium-severity Missing Authorization (CWE-862) vulnerability in Nsqua Simply Schedule Appointments. Its CVSS base score is 5.3 (Medium).
Operationally, ranked in the top 7.5% 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 Simply Schedule Appointments WordPress plugin prior to version 1.5.7.7 contains a missing authorization vulnerability (CWE-862) in a REST endpoint. This flaw affects any site running the vulnerable plugin and carries a CVSS 3.1 score of 5.3, reflecting network-accessible exposure with low attack complexity and no required credentials.
An unauthenticated attacker can send crafted requests to the affected endpoint and retrieve sensitive WordPress user information, including names and email addresses. Because the issue requires no authentication or user interaction, exploitation can be performed remotely by any party with network access to the WordPress installation.
The referenced WPScan advisory identifies the root cause in the pre-1.5.7.7 releases and indicates that updating to version 1.5.7.7 or later resolves the authorization gap. The associated EPSS score has remained flat at 0.0839 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-34640
Vulnerability details
The Simply Schedule Appointments WordPress plugin before 1.5.7.7 is missing authorisation in a REST endpoint, allowing unauthenticated users to retrieve WordPress users details such as name and email address
- 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.