CVE-2026-9857Invoice123 <= 1.7.0 - Missing Authorization to Authenticated (Subscriber+) Setting Modification via s123_submit_api_key & s123_submit_invoice_settings AJAX actions
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
The Invoice123 plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to overwrite the plugin's API key stored in wp_options, modify invoice plugin settings, and alter WooCommerce tax rate data in the wp_woocommerce_tax_rates table.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Jul 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
saskaita123 Invoice123 saskaita123:invoice123 (from the name) | through 1.7.0 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7d4e685a-0462-447f-a639-4f95d5aa27ab?source=cve
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_InvoiceSettings.php#L26
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_InvoiceSettings.php#L65
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_ApiKey.php#L29
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_InvoiceSettings.php#L18
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_ApiKey.php#L21
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_InvoiceSettings.php#L26
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_InvoiceSettings.php#L65
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_ApiKey.php#L29
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_InvoiceSettings.php#L18
- https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_ApiKey.php#L21
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3594935%40saskaita123-lt&new=3594935%40saskaita123-lt
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.