GHSA-9j5w-2cqc-cwj9: Magento LTS vulnerable to Stored XSS via TinyMCE WYSIWYG Editor

high Affects openmage/magento-lts. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

Magento LTS vulnerable to Stored XSS via TinyMCE WYSIWYG Editor

Package
openmage/magento-lts Composer
Affected versions
<20.2.0
Fixed in
20.2.0
Severity
high  CVSS 7.5
Exploitation
not on CISA KEV
Published
2023-12-08
Source
osv.dev

References

CWE-79
NVD recordopenmage/magento-lts advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

# or, without Composer
pipx install phpwarden   &&   phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

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