Vulnerability · Published Aug 15, 2026 · Assigned by WPScan

CVE-2026-14230ECS < 4.3.8 - Contributor+ Stored XSS via Dynamic Repeater Bindings

Medium 5.4

In plain English

A medium-severity cross-site scripting in ECS from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 86.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

The ECS WordPress plugin before 4.3.8 does not perform capability or object-ownership checks on its Dynamic Repeater AJAX handlers (gated only by a capability-agnostic nonce that any edit_posts user obtains from the Elementor editor), so a Contributor can write a data-source binding into any post — including admin-authored pages — whose attacker-controlled values are rendered into a widget's repeater output without sanitization, executing JavaScript in the session of any visitor or administrator who views the page.

Affected products (as reported)

Vendor	Product	Versions
Unknown	ECS	0 – before 4.3.8

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/fded2f21-d104-4dcb-8fd1-29db9866cabc/ exploit, vdb-entry, technical-description