EUVD-2026-41267
GHSA-7w58-pfxv-fq26
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Network-reachable with no auth (PR:N, AV:N), no complexity; integrity-only impact as no data is read and availability is unaffected.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The Kirki - Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.0.11. 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 send arbitrary HTML-injected emails - including phishing messages embedding a real, valid WordPress password-reset URL for the targeted user - to any registered user via the site's own mail server, abusing its SPF/DKIM reputation. The attacker-controlled emailSubject parameter is passed to wp_mail() with only sanitize_text_field() applied, while emailBody 'text' items are concatenated raw into the HTML email body with no escaping, and 'chip' items can include the genuine WordPress password-reset link for the targeted account.
AnalysisAI
Authorization bypass in the Kirki Freeform Page Builder plugin for WordPress (all versions through 6.0.11) enables unauthenticated remote attackers to trigger arbitrary HTML-injected emails to any registered user via the site's own mail infrastructure. Because the email is dispatched through the site's authenticated SMTP path, it inherits the domain's SPF and DKIM reputation, substantially increasing phishing credibility. Critically, attackers can embed a genuine, site-generated WordPress password-reset URL for the target account inside an attacker-controlled HTML body, creating a highly convincing credential-harvesting lure. No public exploit or CISA KEV listing is confirmed at time of analysis.
Technical ContextAI
The vulnerability resides in Kirki's ComponentLibrary controller, specifically CompLibFormHandler.php (lines 49, 342, 441) and ElementGenerator.php (line 219), as referenced in the WordPress plugin trac repository for version 6.0.9. The root cause is CWE-862 (Missing Authorization): the plugin exposes an endpoint that invokes wp_mail() without first verifying that the requesting party has any legitimate role or session. The emailSubject parameter receives only sanitize_text_field() sanitization - stripping tags but not preventing injection of forged subject lines - while emailBody 'text' items are concatenated directly into the HTML email body with no escaping whatsoever. 'Chip' items can carry a real WordPress-generated password-reset token URL for the targeted account, because the plugin apparently calls the standard WordPress reset flow before embedding the link. The affected CPE is cpe:2.3:a:themeum:kirki_-_freeform_page_builder,_website_builder_&_customizer:*:*:*:*:*:*:*:*, covering all plugin versions through 6.0.11.
RemediationAI
Update the Kirki plugin to a version beyond 6.0.11 immediately; the WordPress plugin repository changeset 3584702 (https://plugins.trac.wordpress.org/changeset?reponame=&old=3584702%40kirki&new=3584702%40kirki) indicates an upstream fix has been committed, but an exact released version number was not confirmed in the available data - verify the current version in the WordPress Plugin Directory before applying. If an immediate update is not possible, site administrators should disable the Kirki ComponentLibrary form-submission functionality at the web server or WAF layer by blocking unauthenticated POST requests to the endpoints handled by CompLibFormHandler.php; this may break legitimate page-builder form features but prevents exploitation. Additionally, consider temporarily disabling outbound email from the wp_mail() function via a plugin such as Disable Emails until the patch is applied - trade-off: this also blocks all legitimate transactional email. No generic workaround eliminates the underlying missing authorization check without code modification.
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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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