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CVE Record

CVE-2022-4034: Appointment Hour Booking <= 1.3.72 - CSV Injection

The Appointment Hour Booking Plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 1.3.72. This makes it possible for unauthenticated attackers to embed untrusted input into content during booking creation that may be exported as a CSV file when a site's administrator exports booking details. This can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.

MediumCVSS 5.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-4034 affects the WordPress Appointment Hour Booking plugin through CSV injection. An unauthenticated visitor can submit booking data that later becomes dangerous when an administrator exports bookings to CSV and opens the file in a vulnerable spreadsheet setup.

Executive priority

Prioritize remediation for sites that actively collect bookings and export CSV files. Business risk is moderate because compromise depends on administrator interaction, but successful exploitation could affect admin workstations and sensitive booking data.

Technical view

The issue is CWE-1236 CSV injection in Appointment Hour Booking up to and including 1.3.72. Untrusted booking fields can be embedded into exported CSV content, potentially causing code execution on the administrator's local system when opened, depending on spreadsheet behavior and configuration.

Likely exposure

Exposure is limited to WordPress sites using Appointment Hour Booking version 1.3.72 or earlier and exporting booking data to CSV. The most likely victim is an administrator handling exported booking files.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires attacker-submitted booking data plus administrator interaction with the exported CSV in a vulnerable local configuration.

Researcher notes

CVSS 3.1 score is 5.8 with AV:N, AC:H, PR:N, UI:R, S:C, and low confidentiality, integrity, and availability impact. The key boundary crossing is from public booking input into administrator-side CSV processing.

Mitigation direction

  • Check official plugin and vendor guidance for the fixed release path.
  • Update Appointment Hour Booking beyond vulnerable versions if an official update is available.
  • Treat exported booking CSV files as untrusted content.
  • Restrict who can export and open booking CSV files.
  • Disable the plugin if no safe update or workflow control is available.

Validation and detection

  • Inventory WordPress sites for Appointment Hour Booking installations.
  • Confirm installed plugin versions are not 1.3.72 or earlier.
  • Review whether administrators export booking details to CSV.
  • Inspect recent booking data for suspicious formula-like CSV content.
  • Verify CSV handling guidance is documented for administrators.
Prepared
Confidence
high
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-1236: Exact CWE lookup

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2022-4034 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
5.8CVSS 3.1MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L1.63.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.8Medium
CVSS 3.1 vector shape for CVE-2022-4034Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
codepeopleAppointment Hour Booking – Booking Calendar0unaffected
Weakness

CWE details

CWE-1236

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.