Security readout for executives and security teams
Plain-English summary
A vulnerable WordPress booking plugin can let unauthenticated visitors plant an iframe through booking form fields. That iframe can later run when staff or another user views the booking details. The issue affects Appointment Hour Booking versions up to and including 1.3.72 and is rated high.
Executive priority
Treat this as a high-priority website hygiene issue where the plugin is deployed. It is unauthenticated and public-form reachable, but current sources do not show known active exploitation.
Technical view
CVE-2022-4035 is a CWE-79 iframe injection issue in Appointment Hour Booking for WordPress. The email or general field parameters lacked sufficient input sanitization and output escaping, allowing unauthenticated stored iframe injection into booking details. CVSS v3.1 score is 7.2 with network attack vector and no privileges required.
Likely exposure
Exposure is likely limited to WordPress sites using Appointment Hour Booking versions up to 1.3.72, especially where booking forms are publicly reachable. The bundle does not support broader product impact.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The described attack requires submitting a booking that stores iframe content, then execution occurs when a user accesses the injected booking details page.
Researcher notes
The affected product is Appointment Hour Booking – Booking Calendar by codepeople. The available evidence identifies insufficient sanitization and escaping in booking form parameters. The affected-version statement is clear; precise fixed-version details should be confirmed from vendor or plugin changelog sources.
Mitigation direction
- Inventory WordPress sites for Appointment Hour Booking plugin usage.
- Upgrade affected installations beyond version 1.3.72 using vendor guidance.
- Temporarily restrict public booking submissions if upgrade timing is uncertain.
- Review recent booking records for suspicious embedded frame content.
- Monitor Wordfence and WordPress plugin guidance for remediation details.
Validation and detection
- Confirm installed plugin version is not 1.3.72 or older.
- Verify public booking forms are no longer accepting unsafe iframe content.
- Review booking detail pages for unexpected embedded external frames.
- Check web logs for unusual booking submissions before remediation.
- Document affected sites, remediation date, and residual 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-79: 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-2022-4035 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/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:C/C:L/I:L/A:N3.92.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/870ae326-a7c9-4201-bf0d-0fbda663a694?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2803896%40appointment-hour-booking&new=2803896%40appointment-hour-booking&sfp_email=&sfph_mail=CVE reference
- https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-4035CVE 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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.