XSS in Supercleanse Buy Now Plus — Payments With Stripe

CVE-2026-1295

The Buy Now Plus – Buy Now buttons for Stripe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'buynowplus' shortcode in all versions up to, and including, 1.0.2 due to insufficient input sanitization and output escaping on shortcode attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (19.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-1295?
CVE-2026-1295 is a medium-severity vulnerability in Supercleanse Buy Now Plus — Payments With Stripe, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-28.
How severe is CVE-2026-1295?
Medium severity. CVSS v3 base score is 6.4 out of 10.