---
title: "[20200103] - Core - XSS in com_actionlogs"
description: "We help designers, developers, hobbyists and business owners get the most out of the Joomla CMS.  Join us at our free monthly meetups, and let us help you with your Joomla projects."
url: "https://www.joomlalondon.co.uk/official-joomla-announcements/20200103-core-xss-in-com-actionlogs"
date: "2026-09-09T13:45:15+00:00"
language: "en-GB"
---

#  \[20200103\] - Core - XSS in com\_actionlogs

- **Project:** Joomla!
- **SubProject:** CMS
- **Impact:** High
- **Severity:** Low
- **Versions:** 3.9.0-3.9.14
- **Exploit type:** XSS
- **Reported Date:** 2019-December-25
- **Fixed Date:** 2020-January-28
- **CVE Number:** [CVE-2020-xxxxx](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-xxxxx)

### Description

Inadequate escaping of usernames allow XSS attacks in com\_actionlogs.

### Affected Installs

Joomla! CMS versions 3.9.0 - 3.9.14

### Solution

Upgrade to version 3.9.15

### Contact

The JSST at the [Joomla! Security Centre](https://developer.joomla.org/security-centre.html "Contact the JSST").

**Reported By:** Mayank Kumbhar from TechjoomlaRead more  [http://feeds.joomla.org/~r/JoomlaSecurityNews/~3/12kRPDhkkFM/800-20200103-core-xss-in-com-actionlogs.html](http://feeds.joomla.org/~r/JoomlaSecurityNews/~3/12kRPDhkkFM/800-20200103-core-xss-in-com-actionlogs.html "[20200103] - Core - XSS in com_actionlogs")

## Schema

```json
{ "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Start", "item": "https://www.joomlalondon.co.uk" }, { "@type": "ListItem", "position": 2, "name": "Official Joomla! Announcements", "item": "https://www.joomlalondon.co.uk/official-joomla-announcements" }, { "@type": "ListItem", "position": 3, "name": "[20200103] - Core - XSS in com_actionlogs", "item": "https://www.joomlalondon.co.uk/official-joomla-announcements/20200103-core-xss-in-com-actionlogs" } ] }
```