CVE-2020-13625: canonical ubuntu_linux Improper Encoding or Escaping of Output
Vulnerability summary
CVE-2020-13625 is a high (CVSS 7.5) Improper Encoding or Escaping of Output vulnerability in canonical ubuntu_linux. EPSS estimates a 3.78% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 08-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
3.78%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.78% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundPhpmailer
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- libphp-phpmailer< 5.2.9+dfsg-2+deb8u6 | < 5.2.14+dfsg-2.3+deb9u2 | < 6.1.6-1
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- cacti< 1.2.13-r0
Canonical1 product
- ubuntu_linuxEOL18.04
Fedoraproject1 product
- fedoraEOL31 | 32
Mageia1 product
- php-phpmailer< 6.1.6-1.mga7
Phpmailer_project1 product
- phpmailer< 6.1.6
Ubuntu1 product
- libphp-phpmailer< 5.2.14+dfsg-1ubuntu0.1~esm1 | < 6.0.6-0.1ubuntu0.1~esm1 | < 5.2.14+dfsg-2.3+deb9u2build0.18.04.1
7 vendors · 8 products
References
20 links- github.com/PHPMailer/PHPMailer/releases/tag/v6.1.6X Refsource CONFIRMREPORTRelease NotesThird Party Advisory
- github.com/PHPMailer/PHPMailer/security/advisories/GHSA-f7hx-fqxw-rvvjX Refsource CONFIRMREPORTExploitPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2020/06/msg00014.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.opensuse.org/opensuse-security-announce/2020-07/msg00067.htmlVendor AdvisoryX Refsource SUSEBroken Link
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00085.htmlVendor AdvisoryX Refsource SUSEBroken Link
- lists.debian.org/debian-lts-announce/2020/08/msg00004.htmlMailing ListX Refsource MLISTThird Party Advisory