Unauthorized Data Access in ECS WordPress Plugin by N3rdish
CVE-2026-19613

Currently unrated

Key Information:

Vendor

WordPress

Status
Vendor
CVE Published:
16 August 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-19613?

The ECS WordPress plugin prior to version 4.3.10 features a security flaw where it fails to enforce proper ownership and post-status checks when retrieving custom field values based on user-supplied post identifiers. This oversight permits users with contributor-level access or higher to access and read sensitive post metadata, including details from private and draft posts that they do not own. This vulnerability poses a significant risk to site confidentiality and data integrity.

Affected Version(s)

ECS 0 < 4.3.10

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erwan LR (WPScan)
WPScan
.