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  4. CVE 2026 13770 appmysite 3153 authenticated subscriber stored
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Back to active CVEs
Medium · CVSS 6.4CVE-2026-13770

AppMySite <= 3.15.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via save_ams_license_key AJAX HandlerCVE-2026-13770

Answer in brief

CVE-2026-13770 records a Medium severity (CVSS 6.4) vulnerability in AppMySite <= 3.15.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via save_ams_license_key AJAX Handler. The current sources do not mark it as known exploited. The current feed maps appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker) (generic), appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker) (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 19, 2026Updated Sep 21, 2026Source checked Nov 3, 2026First seen by HOL Sep 19, 2026Material review Sep 21, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.4
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 6.4. 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 appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker) (generic), appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker) (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker)generic>=0 <=3.15.3Not reported
appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker)generic0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker), appmysite/AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker).
  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 19, 2026

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

  2. Source modified

    Sep 21, 2026

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

  3. First seen by HOL

    Sep 19, 2026

Sources and claim methodology

  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referenceplugins.trac.wordpress.org
  • Source referencewordfence.com
Upstream source description

The AppMySite – WordPress & WooCommerce Mobile App Builder (No-Code Android & iOS App Maker) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via save_ams_license_key AJAX Handler in all versions up to, and including, 3.15.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The save_ams_license_key AJAX handler performs no capability check and no nonce verification, meaning any authenticated user with Subscriber-level access or above can invoke it to store the malicious payload.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Cross-Site Scripting in extension "Mail" (mail)Also CWE-79

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Nov 3, 2026
References
6 linked sources
Open source record