# CVE-2018-1000888: Archive_Tar contains Potential RCE if filename starts with phar://

Source: https://junglewise.ai/threats/cve-2018-1000888-archive-tar-contains-potential-rce-if-filename-starts-with-phar  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-07-07  
License: CC BY 4.0 with a link back

CVE-2018-1000888 · Severity: low · CVSS 3 · Published 2023-07-07

Archive_Tar contains Potential RCE if filename starts with phar://

Technologies: [pear/archive_tar (Packagist)](https://junglewise.ai/threats/technologies/pear-archive-tar). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2018-1000888 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-1000888 being exploited in the wild.

**How severe is CVE-2018-1000888?** Low severity, with a CVSS score of 3, published 7 July 2023.

**Which products and versions are affected?** pear/archive_tar (Packagist) ECOSYSTEM:introduced=0,fixed=1.4.4.

**Is there a fix for CVE-2018-1000888?** Yes. pear/archive_tar (Packagist): upgrade to 1.4.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-1000888?** Check whether you run pear/archive_tar (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

- pear/archive_tar (Packagist): upgrade to 1.4.4 or later

  ```sh
  composer require pear/archive_tar:^1.4.4
  ```


## Affected products

- pear/archive_tar (Packagist) ECOSYSTEM:introduced=0,fixed=1.4.4

## Identifiers

- CVE-2018-1000888
- GHSA-3q76-jq6m-573p

## Related threats

- [PEAR::Archive_Tar Directory Traversal vulnerability](https://junglewise.ai/threats/cve-2006-0931-pear-archive-tar-directory-traversal-vulnerability)
- [Directory Traversal in Archive_Tar](https://junglewise.ai/threats/cve-2021-32610-drupal-core-2021-004-the-drupal-project-uses-the-pear-archive-tar)
- [Deserialization of Untrusted Data in Archive_Tar](https://junglewise.ai/threats/cve-2020-28948-drupal-core-2020-013-the-drupal-project-uses-the-pear-archive-tar)
- [Directory Traversal in Archive_Tar](https://junglewise.ai/threats/cve-2020-36193-pear-archive-tar-improper-link-resolution-vulnerability)