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

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

• Yes, if you run Adobe Commerce and Magento Open Source. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-07-17, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-08-07; treat that as the outer limit, not the target.
• EPSS 100.0%, percentile 100.0: FIRST’s model estimates a 100.0% chance of exploitation activity in the next 30 days, higher than 100.0% of all scored CVEs (very high). EPSS is a probability, not a verdict.
• Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
• Only applies if your dependency tree includes magento/community-edition (Composer (PHP)) = 2.4.4, no fixed version listed; magento/community-edition (Composer (PHP)) >= 2.4.6-p1, < 2.4.6-p6, fixed in 2.4.6-p6; magento/community-edition (Composer (PHP)) >= 2.4.5-p1, < 2.4.5-p8, fixed in 2.4.5-p8; magento/community-edition (Composer (PHP)) < 2.4.4-p9, fixed in 2.4.4-p9. Check your lockfile, including transitive dependencies.

What it is

Adobe Commerce versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in arbitrary code execution. An attacker could exploit this vulnerability by sending a crafted XML document that references external entities. Exploitation of this issue does not require user interaction.

From the GitHub advisory

Adobe Commerce versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in arbitrary code execution. An attacker could exploit this vulnerability by sending a crafted XML document that references external entities. Exploitation of this issue does not require user interaction.

CISA’s summary

Adobe Commerce and Magento Open Source contain an improper restriction of XML external entity reference (XXE) vulnerability that allows for remote code execution.

Weakness type: CWE-611.

Product: Adobe Commerce and Magento Open Source · Assigned by: adobe · Published: 2024-06-13

Affected and fixed versions

Severity scores

• Attack vector: network (remotely reachable)
• Attack complexity: low
• Privileges required: none (no login)
• User interaction: none
• Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

• CISA KEV: added 2024-07-17; federal due date 2024-08-07. Known ransomware use: Unknown.
• CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
• CISA SSVC assessment: exploitation active, automatable yes, technical impact total.
• FIRST EPSS (model of 2026-10-21): 99.99% probability of exploitation activity in the next 30 days; percentile 100.0.

Timeline

• 2024-06-13 — CVE record published by adobe
• 2024-06-13 — GitHub-reviewed advisory GHSA-m8cj-3v68-3cxj published (critical)
• 2024-07-17 — Added to CISA’s Known Exploited Vulnerabilities catalog
• 2024-08-07 — CISA remediation deadline for US federal agencies
• 2025-10-21 — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

1. helpx.adobe.com helpx.adobe.com

Vulnerability records

1. GitHub Advisory GHSA-m8cj-3v68-3cxj github.com
2. CVE.org record CVE-2024-34102 cve.org
3. NVD entry CVE-2024-34102 nvd.nist.gov

Government

1. CISA Known Exploited Vulnerabilities catalog entry cisa.gov

Other references from the CVE record and advisory

1. vicarius.io vicarius.io
2. github.com github.com
3. github.com github.com
4. github.com github.com
5. github.com github.com
6. github.com github.com

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