FooSales POS privilege escalation leads to account takeover
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.
Summary
The FooSales Point of Sale (POS) for WooCommerce plugin for WordPress is vulnerable to privilege escalation in all versions up to and including 1.43.0. The plugin does not properly validate a user's identity before updating account details such as email addresses. An authenticated attacker with FooSales Cashier-level access or above can change the email address of any user, including administrators, and then reset that user's password to take over the account.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The FooSales – Point of Sale (POS) for WooCommerce plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 1.43.0. This is due to the plugin not properly validating a user's identity prior to updating their details like email. This makes it possible for authenticated attackers, with FooSales Cashier-level access and above, to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for FooSales Point of Sale (POS) for WooCommerce.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-10 Threatist record created from CVE-2026-77183
- 2026-10-10 Alias added: GHSA-mqr2-vf6c-h2jp
- 2026-10-11 Priority changed: MEDIUM → LOW
- 2026-10-11 CISA SSVC decision points changed
- 2026-10-11 Priority changed: LOW → MEDIUM
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/97097d41-1d78-4db0-8ee2-70a776bd99f2?source=cve
- https://plugins.trac.wordpress.org/changeset/3719657/foosales/trunk/admin/class-foosales-rest-api.php
- https://plugins.trac.wordpress.org/changeset/3719657/foosales/trunk/admin/foosales-xmlrpc-functions.php
Sources
- CVE-2026-77183 · CVE Program
- CVE-2026-77183 · NVD
- FIRST EPSS
- GHSA-mqr2-vf6c-h2jp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences