CVE-2026-115968 | BDVDB-2026-397205 Detail

Ultimate MemberUltimate Member

Description#

Deserialization of Untrusted Data vulnerability in Ultimate Member Ultimate Member ultimate-member allows Object Injection.This issue affects Ultimate Member: from n/a through 2.13.1.

Impact#

Object Injection

Weaknesses#

CWE-502 Deserialization of Untrusted Data

References#

https://patchstack.com/database/wordpress/plugin/ultimate-member/vulnerability/wordpress-ultimate-member-plugin-2-13-1-php-object-injection-vulnerability?_s_id=cve

Exploit#

No public exploit known

History#

Version 12026-10-28Record published in the CVE List.

Published

Published: 2026-10-28
Last modified: 2026-10-28

Vendor information

Vendor: Ultimate Member
Product: Ultimate Member

All Ultimate Member vulnerabilities

Score

9.8 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 35.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Insecure Deserialization

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 2.13.1
Fixed
Not stated
Vulnerable
Not stated
Fixed
2.14.0

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).