CVE-2026-104642: Simple Shopping Cart vulnerability
low 2.7 published 2026-10-21
- Affected versions
- 5.1.3 up to (not including) 5.3.3
- Fixed in
- 5.3.3
- Latest version
- 5.3.3
- Severity
- Low · CVSS 2.7
- Active installs
- 10,000+
- Type
- Security issue
What an attacker needs
- Access: An admin-level account (per the CVSS score).
CVSS vector (score by WPScan): CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
What to do now
- Update Simple Shopping Cart to 5.3.3 or newer: Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- Not sure which version you run? Check your version against every known Simple Shopping Cart issue.
With WP-CLI:
wp plugin get wordpress-simple-paypal-shopping-cart --field=version. - If you ran an affected version and something looks off (new admin users, spam pages, redirects), run the free scan below.
The advisory
The Simple Shopping Cart WordPress plugin before 5.3.3 does not verify submitted product prices against a value only the site owner can set, allowing users with the Contributor role and above to register attacker-chosen prices for existing products, which any visitor can then use to add those products to the cart at that price.
References
- NVD CVE-2026-104642 nvd.nist.gov
- WPScan advisory wpscan.com
Related
Ran an affected version? Check your site for signs of a hack
The free scan reads the public side of your site and looks for spam pages, hidden redirects, injected scripts and blacklist entries. No login, no install, about a minute.
Where this data comes from
- CVE record, score and references: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Versions and install counts: wordpress.org/plugins/wordpress-simple-paypal-shopping-cart (Plugins API), fetched 2026-11-04.
- The summary, “what an attacker needs” and “what to do” sections are our plain-English reading of the record and the plugin's release history; the quoted description is the record's own text. Spot an error? Email Daniel.