Critical severity · published Oct 18, 2026
CVE-2026-110886
WordPress Conversational Forms for ChatBot plugin <= 1.5.1 - PHP Object Injection vulnerability
9.8
CVSS
0.3%
EPSS
No
On KEV
Description
Deserialization of Untrusted Data vulnerability in QuantumCloud Conversational Forms for ChatBot conversational-forms allows Object Injection.This issue affects Conversational Forms for ChatBot: from n/a through 1.5.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Conversational Forms for ChatBot · QuantumCloud
through 1.5.1 · source: vendor
Affected product
CF
Conversational Forms for ChatBot
QuantumCloud
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110886
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110886
patchstack.com
https://patchstack.com/database/wordpress/plugin/conversational-forms/vulnerability/wordpress-conversational-forms-for-chatbot-plugin-1-5-1-php-object-injection-vulnerability?_s_id=cve
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