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  4. CVE 2026 4357 embed html5 game 13 unauthenticated arbitrary
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Back to active CVEs
Critical · CVSS 10.0CVE-2026-4357

Embed HTML5 Game <= 1.3 - Unauthenticated Arbitrary File UploadCVE-2026-4357

Answer in brief

CVE-2026-4357 records a Critical severity (CVSS 10.0) vulnerability in Embed HTML5 Game <= 1.3 - Unauthenticated Arbitrary File Upload. The current sources do not mark it as known exploited. The current feed maps Unknown/Embed HTML5 Game (generic), Unknown/Embed HTML5 Game (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 Sep 2, 2026Updated Sep 3, 2026Source checked Oct 17, 2026First seen by HOL Sep 2, 2026Material review Sep 3, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 10.0
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 10.0. 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/Embed HTML5 Game (generic), Unknown/Embed HTML5 Game (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Embed HTML5 Gamegeneric0Not reported
Unknown/Embed HTML5 Gamegeneric>=0 <=1.3Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Embed HTML5 Game, Unknown/Embed HTML5 Game.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 2, 2026

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

  2. Source modified

    Sep 3, 2026

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

  3. First seen by HOL

    Sep 2, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Embed HTML5 Game WordPress plugin through 1.3 does not properly restrict who can upload files via the plugin, as well as what can be uploaded, making it possible for unauthenticated attackers to upload PHP backdoors on affected sites.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress SMS Alert Order Notifications plugin <= 4.0.1 - Broken Access Control vulnerabilitySame generic ecosystem
  • phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta TOTP 2FA Bypass via SSO CallbacksSame generic ecosystem
  • phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Missing Current-Password Step-Up on E-mail Change Enables Account TakeoverSame generic ecosystem
  • phpMyFAQ 4.2.0-alpha before 4.2.0-beta Missing Authorization via deleteGroup APISame generic ecosystem
  • phpMyFAQ 4.2.0-alpha.2 before 4.2.0-beta 2FA Brute-Force via remove-twofactor EndpointSame generic ecosystem
  • phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Account Enumeration via Guest Comment EndpointSame generic ecosystem

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-434
Source
CVE List V5
Source checked
Oct 17, 2026
References
1 linked source
Open source record