nico23 Advanced Responsive Video Embedder Plugin 10.8.7 on WordPress _arve_uc_init _wplogin/_wpm backdoor

Summaryinfo

A vulnerability was found in nico23 Advanced Responsive Video Embedder Plugin 10.8.7. It has been classified as critical. Affected is the function _arve_uc_init. The manipulation of the argument _wplogin/_wpm leads to backdoor. This vulnerability is listed as CVE-2026-18072. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in nico23 Advanced Responsive Video Embedder Plugin 10.8.7 and classified as critical. This issue affects the function _arve_uc_init. The manipulation of the argument _wplogin/_wpm with an unknown input leads to a backdoor vulnerability. Using CWE to declare the problem leads to CWE-912. The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product's users or administrators. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at wordfence.com. The identification of this vulnerability is CVE-2026-18072 since 07/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/29/2026). MITRE ATT&CK project uses the attack technique T1588.001 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• nico23

Name

• Advanced Responsive Video Embedder Plugin

Version

• 10.8.7

CPE 2.3info

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CPE 2.2info

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