CVE-2026-19914 json
Welcart e-Commerce <= 2.12.1 - Unauthenticated Stored Cross-Site Scripting via 'custom_order' Parameter
published 2mo ago modified 2mo ago also EUVD-2026-68997
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_order' parameter in all versions up to, and including, 2.12.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload is delivered via the guest checkout form, requiring no authentication, and executes when an administrator views the affected order in the WordPress admin panel.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- uscnanbu Welcart e-Commerce
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/527630bf-d034-4fcd-8fbe-01b388701049?source=cve
- wordpress.org /plugins/usc-e-shop/
- plugins.trac.wordpress.org /browser/usc-e-shop/tags/2.11.34/includes/order_edit_form.php#L233
- plugins.trac.wordpress.org /browser/usc-e-shop/tags/2.11.34/functions/function.php#L228
- plugins.trac.wordpress.org /browser/usc-e-shop/tags/2.11.34/classes/cart.class.php#L552
- plugins.trac.wordpress.org /browser/usc-e-shop/tags/2.11.34/functions/utility.php#L1548
- plugins.trac.wordpress.org /changeset/3673344/usc-e-shop/trunk/includes/order_edit_form.php
- plugins.trac.wordpress.org /changeset?old_path=%2Fusc-e-shop/tags/2.12.1&new_path=%2Fusc-e-shop/tags/2.12.2
Sources
- CVE List CVE-2026-19914
- NVD CVE-2026-19914
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.