CVE-2026-4080
Easy Cart <= 1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
- 6.4MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 84% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Easy Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_to_cart' shortcode in all versions up to and including 1.8. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the ectp_add_to_cart() function uses sanitize_text_field() on shortcode attributes like 'itemid', 'product_name', 'product_desc', 'product_qty', and 'price' before inserting them into double-quoted HTML attributes. While sanitize_text_field() strips HTML tags, it does not escape double quote characters, allowing an attacker to break out of the HTML attribute context and inject arbitrary event handlers. 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.
Timeline
ID reserved
By Wordfence
- 3 months later
· 3 months later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.24% · top 84% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Affected products
References
References15
- https://www.wordfence.com/threat-intel/vulnerabilities/id/73615729-c32a-45f7-b2d8-5c978370e18c?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L280 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L280 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L283 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L283 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L284 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L284 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L285 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L285 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L286 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L286 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L287 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L287 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/trunk/plugin.php#L263 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/easy-cart/tags/1.8/plugin.php#L263 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-33892 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-4080)Record last updated .