What’s Vulnerable › Vulnerabilities

CVE-2020-13625

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-06-08 · updated 2026-06-17
• Weakness: CWE-116

Description

PHPMailer before 6.1.6 contains an output escaping bug when the name of a file attachment contains a double quote character. This can result in the file type being misinterpreted by the receiver or any mail relay processing the message.

Affected products

• Canonical Ubuntu Linux: 18.04
• Debian Linux: 8.0, 9.0
• Fedoraproject Fedora: 31, 32
• Phpmailer Project Phpmailer: before 6.1.6 — fixed in 6.1.6

How to fix

Upgrade to a fixed version: Phpmailer Project Phpmailer 6.1.6. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00067.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00085.html
• 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.debian.org/debian-lts-announce/2020/08/msg00004.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EFM3BZABL6RUHTVMXSC7OFMP4CKWMRPJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SMH4TC5XTS3KZVGMSKEPPBZ2XTZCKKCX/
• https://usn.ubuntu.com/4505-1/
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00067.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00085.html
• https://github.com/PHPMailer/PHPMailer/releases/tag/v6.1.6

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