EUVD-2026-42793
GHSA-h683-9pfq-8v3c
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
UI:R assessed because payload fires only when a privileged admin visits the submissions admin page, not passively; all other metrics match the attack profile.
Primary rating from Vendor (wordfence).
CVSS VectorVendor: wordfence
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
The King Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_page_id' parameter in versions up to, and including, 51.1.62 This is due to insufficient input sanitization in the add_to_submissions() function, which applies sanitize_text_field() (which preserves double-quote characters) before storing the value in post meta, combined with missing output escaping in the king_addons_submissions_custom_column_content() function, which concatenates the stored value into an HTML href attribute via admin_url() without wrapping the result in esc_url(). This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AnalysisAI
Stored Cross-Site Scripting in King Addons for Elementor (WordPress plugin, versions ≤51.1.62) allows authenticated attackers with subscriber-level access to inject persistent JavaScript into the WordPress admin submissions panel. The flaw stems from a two-stage sanitization failure: sanitize_text_field() applied during form submission storage preserves double-quote characters in form_page_id, and the downstream king_addons_submissions_custom_column_content() function then concatenates that stored value into an HTML href attribute via admin_url() without wrapping the result in esc_url(). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated WordPress account at subscriber level or above - the attacker must be able to submit a form on the target site. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N) correctly reflects that subscriber-level authentication (PR:L) is required, which meaningfully limits the attack surface compared to unauthenticated flaws. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers a free subscriber account on a WordPress site running King Addons ≤51.1.62 with the Form Builder widget deployed. The attacker submits a form with a crafted `form_page_id` value containing a double-quote to break the HTML attribute context, injecting a JavaScript payload that executes in the admin panel. … |
| Remediation | Vendor-released patch: 51.1.63. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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