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CVE-2026-18807— ECS < 4.3.8 - Contributor+ Arbitrary Post Binding and Global Preset Modification via Dynamic Repeater Handlers

Quick assessment

Affected
Unknown ECS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 ECS WordPress 插件 4.3.8 版本之前，其动态重复器操作缺乏权限或所有权验证，仅依赖于一个对任何能够打开页面构建器的用户都可用的 nonce（一次性令牌）。这使得贡献者及以上级别的用户可以通过该漏洞读取、修改和删除其不拥有的文章的绑定配置，并更改 ECS WordPress 插件 4.3.8 版本之前的站点级预设配置。

AI Predicted 6.5 Difficulty: Easy EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown ECS < 4.3.8 affected
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I. Basic Information for CVE-2026-18807

Vulnerability Information
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Vulnerability Title
ECS < 4.3.8 - Contributor+ Arbitrary Post Binding and Global Preset Modification via Dynamic Repeater Handlers
Source: CVE Program / CVE List V5
Vulnerability Description
The ECS WordPress plugin before 4.3.8 does not have capability or ownership checks on its dynamic repeater actions, relying only on a nonce available to any user who can open the page builder, allowing users with a contributor-level account or above to read, alter and delete the binding configuration of posts they do not own and to change the ECS WordPress plugin before 4.3.8's site-wide presets.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown ECS 0 ~ 4.3.8 -

II. Public POCs for CVE-2026-18807

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III. Intelligence Information for CVE-2026-18807

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Vendor Advisories for CVE-2026-18807 (1)

Same Patch Batch · Unknown · 2026-08-15 · 6 CVEs total

CVE-2026-14230 ECS < 4.3.8 - Contributor+ Stored XSS via Dynamic Repeater Bindings
CVE-2026-14229 ECS < 4.3.8 - Unauthenticated Private Content Disclosure via ecsload
CVE-2026-16541 Simply Schedule Appointments < 1.6.12.17 - Team Member+ User Email Disclosure via Users an
CVE-2026-16611 Product Feed PRO for WooCommerce < 13.5.7 - Unauthenticated Feed Configuration Disclosure
CVE-2026-18216 Backup Migration < 2.1.7 - Admin+ Privilege Escalation via Post-Restore Auto-Login

IV. Related Vulnerabilities

Same product: ECS
Same vendor: Unknown

V. Comments for CVE-2026-18807

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