EUVD-2026-43141
GHSA-7cwh-6w47-pj4w
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Permanent deletion of all imported site content is total integrity and availability loss; PR:N confirmed by wp_ajax_nopriv_ registration and Wordfence unauthenticated-attacker characterization.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Solace Extra plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.5.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to permanently delete all content previously imported via the Starter Template feature, including posts, pages, media attachments, WooCommerce products, taxonomy terms, and sitebuilder templates. The required nonce is emitted on every wp-admin page via wp_localize_script() hooked to admin_enqueue_scripts without a page guard, meaning any Subscriber visiting /wp-admin/profile.php can obtain it; the handler is additionally registered via wp_ajax_nopriv_, making it reachable by fully unauthenticated users as well.
AnalysisAI
Permanent, irreversible deletion of all Starter Template-imported site content in the Solace Extra WordPress plugin (all versions through 1.5.3) is achievable by fully unauthenticated network attackers due to the complete absence of authorization checks on the responsible AJAX handler. The handler is registered via wp_ajax_nopriv_, removing WordPress's authentication gate entirely, while the required nonce is leaked to any Subscriber-level user visiting any wp-admin page - eliminating both authentication and authorization barriers simultaneously. No public exploit code has been identified at time of analysis and the vulnerability is not listed in CISA KEV, but the Wordfence disclosure includes exact file and line references enabling straightforward reproduction; the official CVSS score of 5.3 significantly understates the destructive impact.
Technical ContextAI
Solace Extra (CPE: cpe:2.3:a:solacewp:solace_extra:*:*:*:*:*:*:*:*) is a WordPress companion plugin providing Starter Template import functionality for SolaceWP themes; it imports posts, pages, media attachments, WooCommerce products, taxonomy terms, and sitebuilder templates in bulk. The root cause is CWE-862 (Missing Authorization): the AJAX handler for deleting all Starter Template-imported content is registered under the wp_ajax_nopriv_{action} hook rather than the authenticated-only wp_ajax_{action} hook, bypassing WordPress's built-in login requirement. No capability check (e.g., current_user_can()) is enforced before executing the deletion. Compounding this, the nonce - WordPress's CSRF mitigation token - is emitted unconditionally on every wp-admin page via wp_localize_script() bound to admin_enqueue_scripts without a page-context guard, meaning it is delivered to any Subscriber who loads /wp-admin/profile.php. The vulnerable logic spans admin/import.php:L1424, includes/class-solace-extra.php:L313, and admin/class-solace-extra-admin.php:L287 as documented in the WordPress plugin trac browser.
RemediationAI
A fix is available via WordPress plugin repository changeset 3593408 (https://plugins.trac.wordpress.org/changeset?reponame=&old=3593408%40solace-extra&new=3593408%40solace-extra); however, the exact patched release version number after 1.5.3 is not confirmed from available data - administrators should check the WordPress plugin directory for the current release and update immediately. As an interim compensating control, restricting access to wp-admin/admin-ajax.php to authenticated IP ranges at the web server or WAF layer will block unauthenticated exploitation via the nopriv handler; note this may disrupt other front-end AJAX features. Alternatively, deactivating the Solace Extra plugin entirely eliminates the attack surface at the cost of losing any plugin-provided functionality. Blocking at the firewall level does not protect against a logged-in Subscriber who obtains the nonce from within the wp-admin session, so patching remains the only complete fix. The Wordfence advisory at the URL above should be monitored for confirmed patch version information.
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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