CVE-2026-91020
MEDIUMDescription
The WebToffee Gift Cards for WooCommerce WordPress plugin before 1.3.1 does not validate a user-supplied gift card amount server-side before using it as the cart-item price and store-credit coupon value, allowing unauthenticated users to submit an arbitrary or negative amount, bypassing the configured denominations and manipulating the order total to obtain products without paying.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 17% of all known CVEs.
References
Related Vulnerabilities
Other CWE-472 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-25153 | Critical | 9.8 | 42% | - | Fix |
| CVE-2025-6191 | High | 8.8 | 11% | - | Fix |
| CVE-2025-7656 | High | 8.8 | 11% | - | Fix |
| CVE-2026-8510 | High | 7.5 | 10.0% | - | Fix |
| CVE-2017-5261 | High | 8.8 | 8.9% | - | - |
| CVE-2017-5260 | High | 8.8 | 8.1% | - | - |
Common questions
How do I fix CVE-2026-91020?
No published fix for CVE-2026-91020 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-91020 being actively exploited?
Not that we know of. CVE-2026-91020 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.26% is the estimated probability that it will be exploited in the next 30 days. That is higher than 17% of all scored CVEs.
How severe is CVE-2026-91020?
CVE-2026-91020 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2026-91020
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-10-02.