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CVE-2026-9857

MEDIUM 4.3 CVSS 3.1
Published
July 10, 2026
Last modified
July 10, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • saskaita123 Invoice123 — Up to and including 1.7.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_ApiKey.php#L21
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_ApiKey.php#L29
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_InvoiceSettings.php#L18
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_InvoiceSettings.php#L26
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.6.8/includes/pages/S123_InvoiceSettings.php#L65
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_ApiKey.php#L21
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_ApiKey.php#L29
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_InvoiceSettings.php#L18
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_InvoiceSettings.php#L26
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/saskaita123-lt/tags/1.7.0/includes/pages/S123_InvoiceSettings.php#L65
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3594935%40saskaita123-lt&new=3594935%40saskaita123-lt
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7d4e685a-0462-447f-a639-4f95d5aa27ab?source=cve
  • nvd.nist.gov Official NVD record