Full page cache enumeration via cookie X-Magento-Vary

published 2023-10-13 3 y ago modified 2026-06-17 4 mo ago also GHSA-grc6-r6f8-xj7c , EUVD-2023-42040

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

Adobe Commerce versions 2.4.7-beta1 (and earlier), 2.4.6-p2 (and earlier), 2.4.5-p4 (and earlier) and 2.4.4-p5 (and earlier) are affected by an Improper Authorization vulnerability that could lead in a security feature bypass in a way that an attacker could access unauthorised data. Exploitation of this issue does not require user interaction.

Patch / fix

fixed in 1

packagist magento/community-edition 2.4.4-p6, 2.4.5-p5, 2.4.6-p3, 2.4.7-beta2

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 20 mo ago (2025-02-26)

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	magento/community-edition	>=2.4.7-beta1, <2.4.7-beta2 1 listed version >=2.4.6-p1, <2.4.6-p3 >=2.4.5-p1, <2.4.5-p5 >=2.4.4-p1, <2.4.4-p6	2.4.7-beta2 2.4.6-p3 2.4.5-p5 2.4.4-p6
packagist	magento/project-community-edition	<=2.0.2	no fix listed

Affected products

Adobe Adobe Commerce

Classification

Weakness

CWE-285 Improper Authorization

References

helpx.adobe.com /security/products/magento/apsb23-50.html
vendor-advisory, web
nvd.nist.gov /vuln/detail/CVE-2023-38220
advisory
github.com /magento/magento2
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary