CVE-2024-35633Network attack vector

Authenticated server requests via Mailchimp region URL

Published Jun 3, 2024 · Updated Apr 28, 2026

Server-side request forgery in Creative Themes Blocksy Companion 2.0.42 and earlier allows remote authenticated users to send server requests. The Mailchimp integration accepts a URL in the region portion of an API key and uses that value to form the outbound provider endpoint. High-privileged access to the integration settings is required, and crafted requests can reach destinations accessible to the WordPress server.

CVSS severity4.4
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Creative Themes Blocksy Companion 2.0.42 and earlier allows remote authenticated users to send server requests. The Mailchimp integration accepts a URL in the region portion of an API key and uses that value to form the outbound provider endpoint. High-privileged access to the integration settings is required, and crafted requests can reach destinations accessible to the WordPress server.

The record

CVE
CVE-2024-35633
Published
Jun 3, 2024
Updated
Apr 28, 2026
Vendor
Creative Themes
Product
Blocksy Companion
Classifications
CWE-918
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 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 <=2.0.42 changes=[{"at":"2.0.43","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Creative Themes · Blocksy Companionversion=0 <=2.0.42 changes=[{"at":"2.0.43","status":"unaffected"}]

Published CVSS scores

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.4PatchstackCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)

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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