CVE-2024-48033 CRITICAL

CVE-2024-48033: WordPress Talkback plugin <= 1.0 - PHP Object Injection vulnerability

Vendor Baptiste.gourdin

Product Talkback

Weakness CWE-502 · Unsafe deserialization

Published October 11, 2024

Last update May 12, 2026

View on NVD All CVEs

CVSS base score

9.8/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in baptiste.gourdin Talkback talkback-secure-linkback-protocol allows Object Injection.This issue affects Talkback: from n/a through <= 1.0.

Explanation of Vulnerability in Simple Terms

02Summary

Talkback versions 1.0 and earlier contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the server. The vulnerability exists because the application deserializes untrusted data without proper validation. An attacker can exploit this remotely over the network without requiring user interaction or authentication.

What an attacker can do

03Attacker Capabilities

Run their own code on the server, read sensitive files, modify data, or take the site offline.

Potential impact on your site

04Site Impact

Complete compromise of the server hosting Talkback. Attackers can steal data, deface content, or use the server for further attacks.

Conditions required to exploit

05Prerequisites

Network access to the vulnerable Talkback instance. No authentication or user interaction required.

Key dates

06Disclosure timeline

October 11, 2024 CVE published

May 12, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-48033 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/502.html AskarLabs — CWE-502 write-up Deserialization of Untrusted Data

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