# CVE-2023-0842: node-xml2js: xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object

CVE-2023-0842 is fixed in node-xml2js on 1 platform, first by DEBIAN-CVE-2023-0842, released April 5, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-0842
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0139
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 5, 2023

## Description

xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-xml2js Debian 12.15 (bookworm) | 0.4.23+~cs15.4.0+dfsg-7 | [DEBIAN-CVE-2023-0842](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0842.md) | Apr 5, 2023 |
| Linux | node-xml2js Debian 13.5 (trixie) | 0.4.23+~cs15.4.0+dfsg-7 | [DEBIAN-CVE-2023-0842](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0842.md) | Apr 5, 2023 |
| Linux | node-xml2js Debian 14 | 0.4.23+~cs15.4.0+dfsg-7 | [DEBIAN-CVE-2023-0842](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0842.md) | Apr 5, 2023 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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