Vulnerability-Lookup

CVE-2026-13423 (GCVE-0-2026-13423)

Vulnerability from cvelistv5 – Published: 2026-07-29 06:00 – Updated: 2026-07-29 12:51

Title

Streamit <= 4.5.0 - Unauthenticated Remote Code Execution via Arbitrary Function Call

Summary

The Streamit WordPress theme through 4.5.0 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.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-94 - Improper Control of Generation of Code ('Code Injection')

Assigner

WPScan

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/f85c5da1-412f-40…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Streamit	Affected: 0 , ≤ 4.5.0 (semver)

Credits

Erwan LR (WPScan) WPScan

Show details on NVD website

JSON

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              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
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}

GHSA-FVVP-V9C4-343H

Vulnerability from github – Published: 2026-07-29 09:31 – Updated: 2026-07-29 15:31

Details

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-13423"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-29T07:16:41Z",
    "severity": "CRITICAL"
  },
  "details": "The Streamit WordPress theme through 4.5.0 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.",
  "id": "GHSA-fvvp-v9c4-343h",
  "modified": "2026-07-29T15:31:10Z",
  "published": "2026-07-29T09:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13423"
    },
    {
      "type": "WEB",
      "url": "https://wpscan.com/vulnerability/f85c5da1-412f-4079-8c44-708bc78c2b9b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-13423 (GCVE-0-2026-13423)

GHSA-FVVP-V9C4-343H

Tags

Sightings

Nomenclature