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Vulnerability record · CVE-2021-46876 · published 12 March 2023

CVE-2021-46876: Ibexa ez platform kernel observable discrepancy vulnerability

Ibexa · Ez Platform Kernel

An issue was discovered in eZ Publish Ibexa Kernel before 7.5.15.1. The /user/sessions endpoint can be abused to determine account existence.

5.3 CVSS 3.1 Medium EPSS 0.51% · top 59.1% CWE-203 · Observable discrepancy
5.3CVSS 3.1 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in eZ Publish Ibexa Kernel before 7.5.15.1. The /user/sessions endpoint can be abused to determine account existence.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ezsystems/ezpublish-kernel/commit/b496f073c3f03707d3531a6941dc098b84e3cbed Patch
https://github.com/ezsystems/ezpublish-kernel/security/advisories/GHSA-gmrf-99gw-vvwj Vendor Advisory
https://github.com/ezsystems/ezpublish-kernel/commit/b496f073c3f03707d3531a6941dc098b84e3cbed Patch
https://github.com/ezsystems/ezpublish-kernel/security/advisories/GHSA-gmrf-99gw-vvwj Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-48367Ibexa digital experience platform missing authorization vulnerabilityAn issue was discovered in eZ Publish Ibexa Kernel before 7.5.28. Access control based on object state is mishandled.EPSS 0.72%9.8CVE-2022-25337Ibexa ez platform kernel injection vulnerabilityIbexa DXP ezsystems/ezpublish-kernel 7.5.x before 7.5.26 and 1.3.x before 1.3.12 allows injection attacks via image filenames.EPSS 1.1%7.2CVE-2022-48365Ibexa digital experience platform improper privilege management vulnerabilityAn issue was discovered in eZ Platform Ibexa Kernel before 1.3.26. The Company admin role gives excessive privileges.EPSS 0.86%6.1CVE-2021-46875Ibexa ez platform kernel cross-site scripting vulnerabilityAn issue was discovered in eZ Platform Ibexa Kernel before 1.3.1.1. An XSS attack can occur because JavaScript code can be uploaded in a .html or .js…EPSS 0.40%5.3CVE-2022-25336Ibexa ez platform kernel insecure direct object reference vulnerabilityIbexa DXP ezsystems/ezpublish-kernel 7.5.x before 7.5.26 and 1.3.x before 1.3.12 allows Insecure Direct Object Reference (IDOR) attacks against image…EPSS 0.71%3.7CVE-2022-48366Ibexa commerce race condition vulnerabilityAn issue was discovered in eZ Platform Ibexa Kernel before 1.3.19. It allows determining account existence via a timing attack.EPSS 0.46%

Source: NIST National Vulnerability Database (record CVE-2021-46876), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.