CVE-2024-13770Network attack vector

Conditional code execution via AJAX object deserialization

Published Feb 13, 2025 · Updated Apr 8, 2026

PHP object injection in ThemeREX Puzzles 4.2.4 and earlier allows remote attackers to inject objects through an AJAX request. The unauthenticated view_more_posts action deserializes attacker-controlled input, creating an arbitrary PHP object. Impact requires a POP chain from another installed plugin or theme; that chain determines whether files can be deleted, data read, or code executed.

CVSS severity9.8
Critical
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in ThemeREX Puzzles 4.2.4 and earlier allows remote attackers to inject objects through an AJAX request. The unauthenticated view_more_posts action deserializes attacker-controlled input, creating an arbitrary PHP object. Impact requires a POP chain from another installed plugin or theme; that chain determines whether files can be deleted, data read, or code executed.

The record

CVE
CVE-2024-13770
Published
Feb 13, 2025
Updated
Apr 8, 2026
Vendor
ThemeREX
Product
Puzzles
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=4.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ThemeREX · Puzzlesversion=0 <=4.2.4

Published CVSS scores

8.1WordfenceCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

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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