CVE-2026-92798
8.1, highWpeverest User Registration & Membership - Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User…
- CVSS
- 8.1, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 17 Oct 2026yesterday
Description
The User Registration & Membership plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 5.2.8 This is due to insufficient input sanitization in the 'referrer_url' branch of UR_Smart_Tags::process(), where the attacker-controlled HTTP_REFERER header is only passed through sanitize_text_field() (which does not strip WordPress shortcode delimiters) before being substituted into a Content Restriction message that is subsequently executed via apply_shortcodes()/do_shortcode(). This makes it possible for unauthenticated attackers to execute arbitrary registered shortcodes on any restricted page whose message uses the supported {{referrer_url}} smart tag.
Details
- Vendor
- Wpeverest
- Product
- User Registration & Membership - Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder
- Weakness
- CWE-94 (opens in a new tab)
- Status
- Received
- Updated
- 17 Oct 2026
- Assigner
- security@wordfence.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References 6
Other references 6
- plugins.trac.wordpress.org /browser/user-registration/tags/5.2.8/includes/class-ur-smart-tags.php#L474 (opens in a new tab)
- plugins.trac.wordpress.org /browser/user-registration/tags/5.2.8/includes/class-ur-smart-tags.php#L475 (opens in a new tab)
- plugins.trac.wordpress.org /browser/user-registration/tags/5.2.8/modules/content-restriction/class-urcr-frontend.php#L1383 (opens in a new tab)
- plugins.trac.wordpress.org /browser/user-registration/tags/5.2.8/modules/content-restriction/functions-urcr-core.php#L693 (opens in a new tab)
- plugins.trac.wordpress.org /changeset/3741339/user-registration/trunk/includes/class-ur-smart-tags.php (opens in a new tab)
- wordfence.com /threat-intel/vulnerabilities/id/ec317df9-c7ef-49a3-9818-903dfe4bdd03?source=cve (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other Wpeverest CVEs
Every Wpeverest CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2026-96660 Wpeverest User Registration & Membership - Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User… 7.2, high
Beyond this page
Is CVE-2026-92798 in your network?
This page tells you how dangerous CVE-2026-92798 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
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EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-92798 comes with the devices to patch.
Learn more about EXYS7600 OCELOT -
EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 18 Oct 2026, not the live upstream state.