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VulnerabilityPublished Updated

CVE-2026-10820: Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content · Insecure Direct Object Reference

Affects Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict ContentSource CVE Database V5

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Not known to be exploited · CVSS 8.1 High : upgrade to 4.16.17 soon.

Data as of 8 Nov 2026, 23:24 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 4.16.17
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Jun 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 9 Nov 2026.

What to do

Upgrade Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content to 4.16.17.

Affected software

ProductAffectedFixed in
Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict ContentAffected
  • <4.16.17
Fixed in
  • 4.16.17

AI-suggested

If you cannot patch yet, restrict user roles and permissions to limit who can perform subscription actions, and monitor for suspicious subscription cancellations. Avoid granting Subscriber+ roles to untrusted users. Review plugin updates regularly for a security patch addressing this issue.

Description

The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content WordPress plugin before 4.16.17 does not verify that the user performing a subscription action owns the targeted subscription, allowing any authenticated user (Subscriber+) to cancel other users' active subscriptions via an Insecure Direct Object Reference.

References

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