$ cve CVE-2026-18072 JSON

CVE-2026-18072

9.8

CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

The Advanced Responsive Video Embedder for Rumble, Odysee, YouTube, Vimeo, Kick … plugin for WordPress is vulnerable to Authentication Bypass via a Hardcoded Backdoor in version 10.8.7. The vulnerability exists because the `_arve_uc_init()` function — registered on WordPress's `init` hook at priority 1 so that it runs before any authentication checks on every request — reads an attacker-supplied token from the `_wplogin` (or `_wpm`) parameter and compares it against a hardcoded SHA-256 hash embedded directly in the plugin source, with no nonce verification, no capability check, and no password validation anywhere in the flow. Because this static hash constitutes a set of universal credentials that are publicly accessible in the plugin's source code, unauthenticated attackers can supply the known token to be authenticated as an arbitrarily selected existing administrator account, gaining full administrative control over the affected WordPress site. This was likely introduced by an attacker who gained commit access to the developers account.

Scoring

CVSS	9.8 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS	2.98% — more likely to be exploited than 87% of all CVEs
Weakness	CWE-506
On CISA KEV	no
Public exploit	none known
Published	2026-07-29
Last modified	2026-07-30

References

→ the Explorer · watch your stack · NVD