# CVE-2021-23358: libjs-underscore: The package underscore from 1.13.0-0 and before 1.13.0-2, from 1.3.2 and before 1.12.1 are vulnerable to Arbitrary Co...

CVE-2021-23358 is fixed in 2 products on 1 platform, first by libjs-underscore 1.8.3~dfsg-1ubuntu0.1, released March 29, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-23358
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0420
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 29, 2021

## Description

The package underscore from 1.13.0-0 and before 1.13.0-2, from 1.3.2 and before 1.12.1 are vulnerable to Arbitrary Code Injection via the template function, particularly when a variable property is passed as an argument as it is not sanitized.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libjs-underscore Ubuntu 18.04.6 LTS (bionic) | 1.8.3~dfsg-1ubuntu0.1 | [libjs-underscore 1.8.3~dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjs-underscore-1.8.3-dfsg-1ubuntu0.1.md) | Mar 29, 2021 |
| Linux | libjs-underscore Ubuntu 20.04 LTS (focal) | 1.9.1~dfsg-1ubuntu0.20.04.1 | [libjs-underscore 1.9.1~dfsg-1ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libjs-underscore-1.9.1-dfsg-1ubuntu0.20.04.1.md) | Mar 29, 2021 |
| Linux | node-underscore Ubuntu 18.04.6 LTS (bionic) | 1.8.3~dfsg-1ubuntu0.1 | [node-underscore 1.8.3~dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-node-underscore-1.8.3-dfsg-1ubuntu0.1.md) | Mar 29, 2021 |
| Linux | node-underscore Ubuntu 20.04 LTS (focal) | 1.9.1~dfsg-1ubuntu0.20.04.1 | [node-underscore 1.9.1~dfsg-1ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-node-underscore-1.9.1-dfsg-1ubuntu0.20.04.1.md) | Mar 29, 2021 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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