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TI-2026-12054 Aliases CVE-2026-14230GHSA-j628-rxpx-m866

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

Priority MEDIUM 58CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00226 13th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed ECS (Unknown): 4.3.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownECSbefore 4.3.84.3.8Patch availableCNA
  • ECS VendorUnknown Affected before 4.3.8 Fixed in 4.3.8 Patch available CNA

Remediation

  • Fix · CNA ECS (Unknown) Fixed in 4.3.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ECS 4.3.8

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2026-12053 ECS < 4.3.8 - Unauthenticated Private Content Disclosure via ecsloadPriority MEDIUM 63
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-14230
  2. 2026-10-03 Alias added: GHSA-j628-rxpx-m866

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences