ECS < 4.3.8 - Contributor+ Stored XSS via Dynamic Repeater Bindings (CVE-2026-14230) | HOL Guard CVE

Medium · CVSS 5.4CVE-2026-14230

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

Answer in brief

CVE-2026-14230 records a Medium severity (CVSS 5.4) vulnerability in ECS < 4.3.8 - Contributor+ Stored XSS via Dynamic Repeater Bindings. The current sources do not mark it as known exploited. The current feed maps Unknown/ECS (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 15, 2026Updated Aug 26, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 26, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.4
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/ECS (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/ECSgeneric	>=0 <4.3.8	4.3.8

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/ECS.
Review the reported fix. Update Unknown/ECS to 4.3.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.