What’s Vulnerable › Vulnerabilities

CVE-2021-46876

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-12 · updated 2026-06-17
• Weakness: CWE-203

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.

Affected products

• ibexa Ez Platform Kernel: from 6.13.0 before 6.13.8.1; from 7.5.0 before 7.5.15.1 — fixed in 6.13.8.1, 7.5.15.1

How to fix

Upgrade to a fixed version: ibexa Ez Platform Kernel 6.13.8.1, 7.5.15.1. Check the vendor advisory for mitigations.

References

• https://github.com/ezsystems/ezpublish-kernel/commit/b496f073c3f03707d3531a6941dc098b84e3cbed
• https://github.com/ezsystems/ezpublish-kernel/security/advisories/GHSA-gmrf-99gw-vvwj
• https://github.com/ezsystems/ezpublish-kernel/commit/b496f073c3f03707d3531a6941dc098b84e3cbed
• https://github.com/ezsystems/ezpublish-kernel/security/advisories/GHSA-gmrf-99gw-vvwj

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