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CVE-2026-109871

User Registration & Membership < 5.3.2 - Subscriber+ Payment Bypass via Membership Renewal

4.3 Medium

CVE-2026-109871 is a medium vulnerability (CVSS 4.3) in Unknown User Registration & Membership, published November 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 17th percentile. No source names a fixed version.

What does this mean?
Severity
4.3 MediumCVSS 3.1, CVE List
Exploit chance
0.25%EPSS, 17th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

The User Registration & Membership WordPress plugin before 5.3.2 does not verify that a payment has actually been completed before extending a paid membership subscription, allowing authenticated users with an active paid subscription to renew it indefinitely without paying.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
None

Exploit likelihood

0.25%Up 0.1 points since Nov 11, 2026
90%50%10%1%

Affected products

What each source reports

CVE List Score used4.3

User Registration & Membership < 5.3.2 - Subscriber+ Payment Bypass via Membership Renewal

The User Registration & Membership WordPress plugin before 5.3.2 does not verify that a payment has actually been completed before extending a paid membership subscription, allowing authenticated users with an active paid subscription to renew it indefinitely without paying.

Record
CVE-2026-109871
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-284
Updated
2026-11-11
EUVDEUVD-2026-1231584.3

The User Registration & Membership WordPress plugin before 5.3.2 does not verify that a payment has actually been completed before extending a paid membership subscription, allowing authenticated users with an active paid subscription to renew it indefinitely without paying.

Record
EUVD-2026-123158
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-11
GitHub AdvisoriesGHSA-8hg5-rmfq-grr74.3

The User Registration & Membership WordPress plugin before 5.3.2 does not verify that a payment...

The User Registration & Membership WordPress plugin before 5.3.2 does not verify that a payment has actually been completed before extending a paid membership subscription, allowing authenticated users with an active paid subscription to renew it indefinitely without paying.

Record
GHSA-8hg5-rmfq-grr7
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-284
Updated
2026-11-11
NVD4.3

The User Registration & Membership WordPress plugin before 5.3.2 does not verify that a payment has actually been completed before extending a paid membership subscription, allowing authenticated users with an active paid subscription to renew it indefinitely without paying.

Record
CVE-2026-109871
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-284
Updated
2026-11-11

History

History
RecordedChangedSources
severityCVE List
cwes, severityGitHub Advisories, NVD
publishedEUVD
aliasesEUVD
aliases, referencesGitHub Advisories
first indexedCVE List

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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