CVE-2025-27400: Magento LTS vulnerable to stored XSS in theme config fields

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

Magento LTS vulnerable to stored XSS in theme config fields

Package
openmage/magento-lts Composer
Affected versions
<20.12.3
Fixed in
20.12.3
Severity
low  CVSS 2.9
Exploitation
not on CISA KEV · EPSS 0% (17.2th percentile)
Published
2025-03-03
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)
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