# CVE-2020-11880: kmail: An issue was discovered in KDE KMail before 19.12.3

CVE-2020-11880 is fixed in 2 products on 1 platform, first by kmail 4:17.12.3-0ubuntu1+esm1, released April 17, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-11880
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0095
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 17, 2020

## Description

An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kmail Ubuntu 18.04.6 LTS (bionic) | 4:17.12.3-0ubuntu1+esm1 | [kmail 4:17.12.3-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-kmail-4-17.12.3-0ubuntu1-esm1.md) | Apr 17, 2020 |
| Linux | kmail Ubuntu 20.04 LTS (focal) | 4:19.12.3-0ubuntu1+esm1 | [kmail 4:19.12.3-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-kmail-4-19.12.3-0ubuntu1-esm1.md) | Apr 17, 2020 |
| Linux | ktnef Ubuntu 18.04.6 LTS (bionic) | 4:17.12.3-0ubuntu1+esm1 | [ktnef 4:17.12.3-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ktnef-4-17.12.3-0ubuntu1-esm1.md) | Apr 17, 2020 |
| Linux | ktnef Ubuntu 20.04 LTS (focal) | 4:19.12.3-0ubuntu1+esm1 | [ktnef 4:19.12.3-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ktnef-4-19.12.3-0ubuntu1-esm1.md) | Apr 17, 2020 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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