---
title: "Security digest: May 29, 2024"
url: https://erroneo.us/security/2024-05-29/
description: "May 29, 2024 vulnerability digest: 1 CISA KEV addition (Justice AV Solutions); 2 critical advisories (Composer (PHP)). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2024-05-29
date_modified: 2024-05-29
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: May 29, 2024

1 known exploited (cisa kev) addition and 2 critical advisories.

## Take stock

- Do you run any of these? Justice AV Solutions Viewer. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2024-06-19.
- Composer (PHP): 2 critical advisories ( symfony/serializer , swiftmailer/swiftmailer ). Check with composer audit .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

- [CVE-2024-4978](https://erroneo.us/security/cve/CVE-2024-4978/index.md) Justice AV Solutions Viewer : Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability (CISA due 2024-06-19)

## Critical advisories

- [GHSA-j68w-pg49-f6vx](https://erroneo.us/security/ghsa/GHSA-j68w-pg49-f6vx/index.md) Symfony XML decoding attack vector through external entities — Composer (PHP) symfony/serializer >= 2.0.0, < 2.0.11 → 2.0.11
- [GHSA-4qpj-gxxg-jqg4](https://erroneo.us/security/ghsa/GHSA-4qpj-gxxg-jqg4/index.md) Swiftmailer Sendmail transport arbitrary shell execution — Composer (PHP) swiftmailer/swiftmailer >= 4.0.0, < 5.2.1 → 5.2.1

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Source page: https://erroneo.us/security/2024-05-29/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt