Deserialization of Untrusted Data in Relevanssi Plugin by Christoph Vielgrader
CVE-2026-114704

7.2HIGH

Key Information:

Vendor

WordPress
Status
Relevanssi
Vendor
CVE Published:
24 October 2026

What is CVE-2026-114704?

The Relevanssi plugin developed by Christoph Vielgrader contains a vulnerability that allows for deserialization of untrusted data, facilitating object injection. This flaw can potentially enable attackers to exploit serialization vulnerabilities within the affected versions, posing risks to website security and data integrity in WordPress sites utilizing this plugin.

Affected Version(s)

Relevanssi 0 <= 4.28.4

References

https://patchstack.com/database/wordpress/plugin/relevans...
vdb-entry

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ananda Dhakal (Patchstack)
.