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01 Record

CVE-2026-110886

WordPress Conversational Forms for ChatBot plugin <= 1.5.1 - PHP Object Injection vulnerability

CriticalPUBLISHEDCNA: Patchstack
CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

02 Description

WordPress Conversational Forms for ChatBot plugin <= 1.5.1 - PHP Object Injection vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 22.9% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-10-19.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-18 11:00Z10 DAYS AGO
Last updated
2026-10-19 15:53Z9 DAYS AGO
Reserved
2026-10-15
Assigning CNA
Patchstack
Record state
PUBLISHED
Severity
Critical (CVSS 9.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.2
Document digest
59a3c99a66af1cb1326a613ff66956414228312f9ed409e10c668b11ba5a45b8

05 Affected products

VendorProductVersionsPlatforms
QuantumCloudConversational Forms for ChatBot0 to 1.5.1—

06 References

07 Remediation

Update the WordPress Conversational Forms for ChatBot plugin to the latest available version (at least 1.5.2).