Vulnerability · Published Jul 29, 2026 · Assigned by WPScan

CVE-2026-13423Streamit < 4.5.2 - Unauthenticated Remote Code Execution via Arbitrary Function Call

Critical 9.8

In plain English

A critical-severity code injection in Streamit from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)1.0%top 38.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The Streamit WordPress theme before 4.5.2 does not perform any authorization or nonce verification on one of its unauthenticated AJAX routes, which invokes an attacker-supplied PHP function with an attacker-supplied argument array, allowing unauthenticated attackers to call arbitrary functions (for example to create an administrator account), leading to privilege escalation and remote code execution.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Streamit	0 – before 4.5.2

Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/f85c5da1-412f-4079-8c44-708bc78c2b9b/ exploit, vdb-entry, technical-description