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VulnerabilityPublished Updated

CVE-2026-15368: User Profile Builder (WordPress plugin) · Improper Privilege Management

Affects User Profile Builder (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 8.1 High : upgrade to 3.16.4 soon.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
8.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.16.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade User Profile Builder (WordPress plugin) to 3.16.4.

Affected software

ProductAffectedFixed in
User Profile BuilderAffected
  • <3.16.4
Fixed in
  • 3.16.4

AI-suggested

Until an official fix or update is available, administrators should review their User Profile Builder plugin configuration and avoid using the vulnerable non-default settings that enable this issue.

Description

The User Profile Builder WordPress plugin before 3.16.4 does not correctly bind the automatic login performed after user registration to the newly created account, allowing unauthenticated attackers to obtain an authenticated session for an arbitrary existing user, including administrators, on sites using a supported but non-default configuration.

References

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