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Back to active CVEs
Critical · CVSS 9.8CVE-2026-13423

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

Answer in brief

CVE-2026-13423 records a Critical severity (CVSS 9.8) vulnerability in Streamit < 4.5.2 - Unauthenticated Remote Code Execution via Arbitrary Function Call. The current sources do not mark it as known exploited. The current feed maps Unknown/Streamit (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 29, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/Streamit (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Streamitgeneric>=0 <4.5.24.5.2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Streamit.
  2. 2Review the reported fix. Update Unknown/Streamit to 4.5.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jul 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • SourceCodester Online Food Ordering System Category Management add_category.php cross site scriptingAlso CWE-94

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-94
Source
CVE List V5
Source checked
Nov 5, 2026
References
1 linked source
Open source record