Input validation error in PHPMailer - CVE-2020-13625
Published: July 6, 2020
Vulnerability identifier: #VU29531
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-13625
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: phpmailer.sourceforge.net
Affected software:
PHPMailer
PHPMailer
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass implemented security restrictions
The vulnerability exists due to insufficient validation of user-supplied file attachments with a double quote character. A remote attacker can pass specially crafted filename to the application and bypass implemented security restrictions.
How to mitigate CVE-2020-13625
Install updates from vendor's website.
Sources
- https://github.com/PHPMailer/PHPMailer/releases/tag/v6.1.6
- https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-f7hx-fqxw-rvvj
- https://lists.debian.org/debian-lts-announce/2020/06/msg00014.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EFM3BZABL6RUHTVMXSC7OFMP4CKWMRPJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SMH4TC5XTS3KZVGMSKEPPBZ2XTZCKKCX/