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Vulnerabilities

Vulnerability · CVE-2026-120070

User Frontend <= 4.3.13 - Authenticated (Subscriber+) Privilege Escalation via post_content Parameter

Published Oct 31, 2026 · catalog updated Oct 31, 2026 · User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-120070. EPSS is 0.30%. Act only if a listed version of User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.30%
Remediation
Version ranges on file
Affected products
stated named in the record · vendor wedevs User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission

The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13 via the parameter of the function. The vulnerability exists because the protected-shortcode blocklist guard inspects the copy of the submitted , while the copy actually persisted to the database is processed through , whose step strips C0 control bytes — allowing an attacker to inject a single byte inside the tag name to defeat the blocklist check while the clean, functional shortcode is stored verbatim; does not neutralize the stored shortcode either, because the Frontend container that registers it via is only instantiated when is false, and requests have . This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a shortcode into a published post, causing a live Editor-role registration form to be rendered publicly on the frontend that any visitor — or the attacker themselves — can submit to mint a WordPress Editor account with an immediately active privileged session when the default setting is enabled.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 4.3.13
  • vendor wedevs User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submissionversion unspecified

How to fix CVE-2026-120070

  • Upgrade

    CVE-2026-120070 lists a fix boundary at 4.3.13. Compare the installed build with that boundary before you change production.

  • Version check

    Affected <= 4.3.13

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-120070. EPSS is 0.30%. Act only if a listed version of User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 4.3.13. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-269: Improper Privilege Management. EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 31, 2026 · Tenable CVE Database

    Detected

    The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13 via the parameter of the function. The vulnerability exists because the protected-shortcode blocklist guard inspects the copy of the submitted , while the copy actu

  2. Oct 31, 2026 · CVE.org

    Updated

    The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13 via the parameter of the function. The vulnerability exists because the protected-shortcode blocklist guard inspects the copy of the submitted , while the copy actu

Sources

  • CVE.orgVulnerability recordCVE-2026-120070

    The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13 via the parameter of the function. The vulne

    cve.org
  • Tenable CVE DatabaseVulnerability recordCVE-2026-120070

    The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.3.13 via the parameter of the function. The vulnerability exists because the protected-shortcode blocklist guard inspects the copy of the submitted , while the copy actu

    tenable.com

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 2, 2026
  • Tenable CVE DatabaseNov 1, 2026