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CVE-2026-3601

User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification

4.3 Medium

The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.

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

0.30%Up 0.3 points since May 5, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.3

User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification

The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.

Record
CVE-2026-3601
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-862
Updated
2026-11-02
EUVDEUVD-2026-27241 4.3

The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.

Record
EUVD-2026-27241
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
2026-11-02
GitHub AdvisoriesGHSA-82vf-3973-8g6r 4.3

The User Registration & Membership plugin for WordPress is vulnerable to unauthorized...

The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.

Record
GHSA-82vf-3973-8g6r
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-862
Updated
2026-11-02
NVD 4.3

The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.

Record
CVE-2026-3601
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-862
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

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

In short

CVE-2026-3601 is a medium vulnerability (CVSS 4.3) in Wpeverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder, published May 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.

References

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