Plugins · optin · data as of 2026-11-04
Is WowOptin safe? Known vulnerabilities and latest version
- Status
- Closed 2026-10-10
- Known issues on record
- 3
- Unpatched in latest
- 0
What to do
- Replace it. A closed plugin gets no updates through WordPress, so any hole found from now on stays open.
- Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deleting removes its files; deactivating alone leaves them on the server.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.
With WP-CLI, once you have a replacement: wp plugin deactivate optin && wp plugin delete optin
Check your version
Known vulnerabilities
3 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version. 3 record(s) do not state which versions are affected.
medium 5.3 CVE-2026-39700 · published 2026-04-08
Missing authorization check in WowOptin (1.4.32 and older)
- Affected
- 1.4.32 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Missing Authorization vulnerability in WPXPO WowOptin optin allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WowOptin: from n/a through <= 1.4.32.
high 7.2 CVE-2026-4302 · published 2026-03-21
Server-side request forgery (SSRF) in WowOptin (1.4.29 and older)
- Affected
- 1.4.29 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The WowOptin: Next-Gen Popup Maker plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.4.29. This is due to the plugin exposing a publicly accessible REST API endpoint (optn/v1/integration-action) with a permission_callback of __return_true that passes user-supplied URLs directly to wp_remote_get() and wp_remote_post() in the Webhook::add_subscriber() method without any URL validation or restriction. The plugin does not use wp_safe_remote_get/post which provide built-in SSRF protection. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
NVD CVE-2026-4302Wordfence advisoryCode change (fix)Plugin source
high 8.8 CVE-2026-1720 · published 2026-03-05
Missing authorization check in WowOptin (1.4.24 and older)
- Affected
- 1.4.24 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The WowOptin: Next-Gen Popup Maker – Create Stunning Popups and Optins for Lead Generation plugin for WordPress is vulnerable to unauthorized arbitrary plugin installation due to a missing capability check on the 'install_and_active_plugin' function in all versions up to, and including, 1.4.24. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate arbitrary plugins.
NVD CVE-2026-1720Wordfence advisoryCode change (fix)Plugin source
Recent activity
- 2026-10-10 — closed on wordpress.org.
- 2026-04-08 — Missing authorization check disclosed (CVE-2026-39700), fix version not stated.
- 2026-03-21 — Server-side request forgery (SSRF) disclosed (CVE-2026-4302), fix version not stated.
- 2026-03-05 — Missing authorization check disclosed (CVE-2026-1720), fix version not stated.
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Browse vulnerabilities
Types found in this plugin: Missing authorization (2) · Server-side request forgery (SSRF) (1)
Where this data comes from
- Version, last update, installs, closure: wordpress.org/plugins/optin (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
<a href="https://laskyr.com/plugins/optin"><img src="https://laskyr.com/plugins/optin/badge.svg" alt="WowOptin vulnerability status"></a>