CVE-2024-31284Network attack vector

Unauthenticated Calendly settings changes via unchecked handler

Published Jun 9, 2024 · Updated Apr 28, 2026

Missing authorization in EmbedPress 3.9.8 and earlier allows remote attackers to update Calendly settings through a WordPress AJAX action. The handle_calendly_data() handler accepts unauthenticated requests because it omits a capability check before writing the settings. No account or user interaction is required, and the demonstrated consequence is limited to changing the site's Calendly configuration.

CVSS severity9.8
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in EmbedPress 3.9.8 and earlier allows remote attackers to update Calendly settings through a WordPress AJAX action. The handle_calendly_data() handler accepts unauthenticated requests because it omits a capability check before writing the settings. No account or user interaction is required, and the demonstrated consequence is limited to changing the site's Calendly configuration.

The record

CVE
CVE-2024-31284
Published
Jun 9, 2024
Updated
Apr 28, 2026
Vendor
ReviewX Team
Product
EmbedPress
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.9.8
  2. Affected versionversion=n/a <=3.9.8 changes=[{"at":"3.9.9","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ReviewX Team · EmbedPressversion=0 <=3.9.8; version=n/a <=3.9.8 changes=[{"at":"3.9.9","status":"unaffected"}]

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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