CVE-2024-34102: Adobe Commerce and Magento Open Source Improper Restriction of XML External Entity Reference (XXE) Vulnerability

How to check if you are exposed to CVE-2024-34102

1. Find every Adobe Commerce and Magento Open Source system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
2. Compare each version with the fixed versions in the vendor advisory below. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
3. Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2024-34102.

US federal agencies had to fix this by 2024-08-07. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.

Timeline

1. 2024-07-17 · Added to CISA's Known Exploited Vulnerabilities catalog
2. 2024-08-07 · Fix-by date for US federal agencies, passed 816 days ago

Vendor advisories and fixes

• https://helpx.adobe.com/security/products/magento/apsb24-40.html

Weakness type

• CWE-611

More exploited Adobe vulnerabilities

CISA lists 83 exploited Adobe vulnerabilities. The closest matches:

• CVE-2022-24086Adobe Commerce and Magento Open Source Improper Input Validation VulnerabilityAdded 2022-02-15
• CVE-2026-48356Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type VulnerabilityAdded 2026-10-27
• CVE-2026-71362Adobe Commerce and Magento Incorrect Authorization Vulnerability Added 2026-09-24
• CVE-2026-75650Adobe Commerce and Magento Improper Neutralization of Special Elements Used in a Template Engine VulnerabilityAdded 2026-09-08
• CVE-2026-48282Adobe ColdFusion Path Traversal VulnerabilityAdded 2026-07-07
• CVE-2009-3459Adobe Acrobat and Reader Heap-Based Buffer Overflow VulnerabilityAdded 2026-05-20
• CVE-2026-34621Adobe Acrobat and Reader Prototype Pollution VulnerabilityAdded 2026-04-13
• CVE-2020-9715Adobe Acrobat Use-After-Free VulnerabilityAdded 2026-04-13

Keep going

• All exploited CVEs
• Check another CVE
• What is CISA KEV?
• What is EPSS?

Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.