TI-2026-11362 Aliases CVE-2026-13423 GHSA-fvvp-v9c4-343h

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

MEDIUM 51CWE-94Published 2026-07-29 · Updated 2026-11-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00963 61st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed Streamit (Unknown): 4.5.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Streamit	before 4.5.2	4.5.2	Patch available	CNA

Streamit VendorUnknown Affected before 4.5.2 Fixed in 4.5.2 Patch available CNA

Remediation

Fix · CNA Streamit (Unknown) Fixed in 4.5.2

Timeline

2026-10-02 Threatist record created from CVE-2026-13423
2026-10-03 Alias added: GHSA-fvvp-v9c4-343h
2026-11-05 Title updated · CNA
2026-11-05 Fix available: Unknown/[email protected] · CNA

References

Exploit 1

https://wpscan.com/vulnerability/f85c5da1-412f-4079-8c44-708bc78c2b9b/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences