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Critical severity · published Oct 23, 2026
CVE-2026-112862
WordPress Participants Database plugin <= 2.7.8.5 - PHP Object Injection vulnerability
New
9.8
CVSS
0.4%
EPSS
No
On KEV
Description
Deserialization of Untrusted Data vulnerability in xnau webdesign Participants Database participants-database allows Object Injection.This issue affects Participants Database: from n/a through 2.7.8.5.
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)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PD
Participants Database · xnau webdesign
through 2.7.8.5 · source: vendor
Affected product
PD
Participants Database
xnau webdesign
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-112862
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-112862
patchstack.com
https://patchstack.com/database/wordpress/plugin/participants-database/vulnerability/wordpress-participants-database-plugin-2-7-8-5-php-object-injection-vulnerability?_s_id=cve
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