PHPMailer before 6.1.6 contains an output escaping bug when the name of a file attachment…
Priority LOW 39CWE-116Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
EPSS 0.0378 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed phpmailer/phpmailer (Packagist): 6.1.6
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | phpmailer/phpmailer (Packagist) | before 6.1.6 | 6.1.6 | Patch available | GHSA-f7hx-fqxw-rvvj |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- phpmailer/phpmailer (Packagist) Vendor— Affected before 6.1.6 Fixed in 6.1.6 Patch available GHSA-f7hx-fqxw-rvvj
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:* | before 6.1.6 | Vulnerable | Phpmailer Project |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 32 | Vulnerable | Fedoraproject |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:* Versions before 6.1.6 Vulnerable ·Phpmailer Project
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
- Fix · GHSA-f7hx-fqxw-rvvj phpmailer/phpmailer (Packagist) Fixed in 6.1.6 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13625
- 2026-10-03 Alias added: GHSA-f7hx-fqxw-rvvj
- 2026-11-07 EPSS moved to the 90th–95th percentile
References
Advisory 9
- https://github.com/PHPMailer/PHPMailer/releases/tag/v6.1.6
- [debian-lts-announce] 20200611 [SECURITY] [DLA 2244-1] libphp-phpmailer security update
- FEDORA-2020-06e87e71fe
- FEDORA-2020-0bbe6304e3
- openSUSE-SU-2020:1060
- openSUSE-SU-2020:1106
- [debian-lts-announce] 20200802 [SECURITY] [DLA 2306-1] libphp-phpmailer security update
- USN-4505-1
- https://nvd.nist.gov/vuln/detail/CVE-2020-13625
Other 5
- https://github.com/PHPMailer/PHPMailer/commit/c2796cb1cb99d7717290b48c4e6f32cb6c60b7b3
- https://github.com/PHPMailer/PHPMailer
- https://lists.fedoraproject.org/archives/list/[email protected]/message/EFM3BZABL6RUHTVMXSC7OFMP4CKWMRPJ
- https://lists.fedoraproject.org/archives/list/[email protected]/message/SMH4TC5XTS3KZVGMSKEPPBZ2XTZCKKCX
- https://usn.ubuntu.com/4505-1
Sources
- CVE-2020-13625 · CVE Program
- CVE-2020-13625 · NVD
- FIRST EPSS
- GHSA-f7hx-fqxw-rvvj · GitHub Advisory Database · CC BY 4.0
- CVE-2020-13625 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences