CVE-2024-31282Network attack vector

Phishing redirects via unvalidated destination URLs

Published Apr 10, 2024 · Updated Apr 28, 2026

Open redirect in App Cheap App Builder 3.8.7 and earlier allows remote attackers to send users to untrusted sites through a crafted URL. The affected redirect path passes an untrusted destination to wp_redirect, whose unrestricted behavior was replaced with wp_safe_redirect. Exploitation requires a user to follow the crafted link; the trusted-site redirect can support phishing, with no reported direct data modification or service interruption.

CVSS severity4.7
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in App Cheap App Builder 3.8.7 and earlier allows remote attackers to send users to untrusted sites through a crafted URL. The affected redirect path passes an untrusted destination to wp_redirect, whose unrestricted behavior was replaced with wp_safe_redirect. Exploitation requires a user to follow the crafted link; the trusted-site redirect can support phishing, with no reported direct data modification or service interruption.

The record

CVE
CVE-2024-31282
Published
Apr 10, 2024
Updated
Apr 28, 2026
Vendor
App Cheap
Product
App Builder
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 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=n/a <=3.8.7 changes=[{"at":"3.8.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

App Cheap · App Builderversion=n/a <=3.8.7 changes=[{"at":"3.8.8","status":"unaffected"}]

Published CVSS scores

4.7PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

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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