# XSS in various backend modules due to (un)escaping in JS notification module

Source: https://junglewise.ai/threats/xss-in-various-backend-modules-due-to-un-escaping-in-js-notification-94c46614  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-05-25  
License: CC BY 4.0 with a link back

Severity: info · Published 2022-05-25

XSS in various backend modules due to (un)escaping in JS notification module

Technologies: [neos/neos (Packagist)](https://junglewise.ai/threats/technologies/neos-neos). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 25 May 2022.

**Which products and versions are affected?** neos/neos (Packagist) ECOSYSTEM:introduced=3.3,fixed=5.3.10.

**Is there a fix for This vulnerability?** Yes. neos/neos (Packagist): upgrade to 5.3.10 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run neos/neos (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- neos/neos (Packagist): upgrade to 5.3.10 or later

  ```sh
  composer require neos/neos:^5.3.10
  ```


## Affected products

- neos/neos (Packagist) ECOSYSTEM:introduced=3.3,fixed=5.3.10

## Related threats

- [Cross-site Scripting vulnerabilities in Neos](https://junglewise.ai/threats/cross-site-scripting-vulnerabilities-in-neos-dc852cda)
- [Privilege Escalation in TYPO3 Neos](https://junglewise.ai/threats/privilege-escalation-in-typo3-neos-61b939a1)
- [Neos Information Disclosure Security Note](https://junglewise.ai/threats/neos-information-disclosure-security-note-402a8935)
- [Neos CMS vulnerable to XSS in various backend modules](https://junglewise.ai/threats/cve-2022-30429-neos-cms-vulnerable-to-xss-in-various-backend-modules)