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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTd3NHAtNzJqNy12N2My

Phar object injection in PHPMailer

PHPMailer versions prior to 6.0.6 and 5.2.27 are vulnerable to an object injection attack by passing phar:// paths into addAttachment() and other functions that may receive unfiltered local paths, possibly leading to RCE. See this article for more info on this type of vulnerability. Mitigated by blocking the use of paths containing URL-protocol style prefixes such as phar://. Reported by Sehun Oh of cyberone.kr.

Impact

Object injection, possible remote code execution

Patches

Fixed in 6.0.6 and 5.2.27

Workarounds

Validate and sanitise user input before using.

References

https://nvd.nist.gov/vuln/detail/CVE-2018-19296

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-7w4p-72j7-v7c2
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTd3NHAtNzJqNy12N2My
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 4 years ago
Updated: 3 months ago


CVSS Score: 8.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-7w4p-72j7-v7c2, CVE-2018-19296
References: Repository: https://github.com/PHPMailer/PHPMailer
Blast Radius: 37.7

Affected Packages

packagist:phpmailer/phpmailer
Dependent packages: 1,199
Dependent repositories: 19,318
Downloads: 61,274,179 total
Affected Version Ranges: >= 6.0.0, < 6.0.6, >= 5.0.0, < 5.2.27
Fixed in: 6.0.6, 5.2.27
All affected versions: 5.2.2, 5.2.4, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.2.10, 5.2.11, 5.2.12, 5.2.13, 5.2.14, 5.2.15, 5.2.16, 5.2.17, 5.2.18, 5.2.19, 5.2.20, 5.2.21, 5.2.22, 5.2.23, 5.2.24, 5.2.25, 5.2.26, 6.0.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5
All unaffected versions: 5.2.27, 5.2.28, 6.0.6, 6.0.7, 6.1.0, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6, 6.1.7, 6.1.8, 6.2.0, 6.3.0, 6.4.0, 6.4.1, 6.5.0, 6.5.1, 6.5.2, 6.5.3, 6.5.4, 6.6.0, 6.6.1, 6.6.2, 6.6.3, 6.6.4, 6.6.5, 6.7.1, 6.8.0, 6.8.1, 6.9.0, 6.9.1