# CVE-2018-13796: mailman: An issue was discovered in GNU Mailman before 2.1.28

CVE-2018-13796 is fixed in mailman on 1 platform by mailman 1:2.1.26-1ubuntu0.1 (version 1:2.1.26-1ubuntu0.1), released April 24, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-13796
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0253
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 12, 2018

## Description

An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mailman Ubuntu 18.04.6 LTS (bionic) | 1:2.1.26-1ubuntu0.1 | [mailman 1:2.1.26-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.1.md) | Apr 24, 2020 |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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