---
title: "Official Joomla! Announcements"
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?start=200"
date: "2026-09-09T15:23:23+00:00"
language: "en-GB"
---

#  Official Joomla! Announcements

##  [ OSG Seminar Manager PRO ](https://www.joomlalondon.co.uk/official-joomla-announcements/osg-seminar-manager-pro)

This course management (event management) component allows you to have a complete event listing and booking system on your Joomla! site. Your customers can book an existing seminar or register at a prospect list. The OSG Seminar Manager PRO comes as package with multiple modules and plugins like Upcoming Events, Calendar, Search, Manual Booking and Invoice, Voting of coure topics.....
**100% Money Back Guarantee for fist-time members!**

Frontend:

- Limit of the bookability of events to specific user groups (access levels for courses and categories)
- publish courses (events) in multiples categories or tags, as list and as course details,
- publish course (event) templates without dates (preview of courses (events) - interested parties list)
- publish an unlimited number of prices
- display of prices can be scheduled, for example, early bird discounts ,which are automatically hidden.
- display of the participant list and waiting list in the frontend
- display of free seats
- support of 2nd currency using a static exchange rate
- display up to 5 price groups depending on Joomla! Usergroups (e.g. prices for members)
- display if a course (event) is already fully booked
- offer documents to download
- list trainer profiles (trainer lists) and the courses of the trainer
- display of more course (event) details (day, time, room, etc)
- and much more..

Users can:
\* book multiple seats on events or
\* register as interested party to events without date
\* pay via Paypal
\* registered users can view their invoices in front-end
\* registered users can view favorites

Administration:

- All changes to personal data are logged. (A requirement of the GDPR)
- Rebooking of several participants at the same time
- automatic users registration,
- attachment of invoices on booking confirmation emails,
- customize email and invoice templates,
- administrate all users on this list in back-end and notify them on new course (event) dates,
- prices can be displayed with or without VAT,
- sending particpants or groups of participants emails directly from the backend,
- automatic PDF invoice generation
- generate PDF attendee lists,
- create custom fields for the application form,
- clone courses (events) from templates,
- organize course (event) with tags or categories,
- administrate tutors, tutor profiles,
- allow acces to the backend with limited rights (manager and trainer roles)
- and much more

Read more  [http://feeds.joomla.org/~r/JoomlaExtensions/~3/AM7obsUyowU/osg-seminar-manager-pro](http://feeds.joomla.org/~r/JoomlaExtensions/~3/AM7obsUyowU/osg-seminar-manager-pro "OSG Seminar Manager PRO")

##  [ WaTestimonial Slider ](https://www.joomlalondon.co.uk/official-joomla-announcements/watestimonial-slider)

WaTestimonialSlider is a Joomla module that shows information from customer testimonials for your website.

Read more  [http://feeds.joomla.org/~r/JoomlaExtensions/~3/110c4ozGuzE/watestimonial-slider](http://feeds.joomla.org/~r/JoomlaExtensions/~3/110c4ozGuzE/watestimonial-slider "WaTestimonial Slider")

##  [ \[20190301\] - Core - XSS in com\_config JSON handler ](https://www.joomlalondon.co.uk/official-joomla-announcements/20190301-core-xss-in-com-config-json-handler)

- **Project:** Joomla!
- **SubProject:** CMS
- **Impact:** Low
- **Severity:** Low
- **Versions:** 3.2.0 through 3.9.3
- **Exploit type:** XSS
- **Reported Date:** 2019-March-04
- **Fixed Date:** 2019-March-12
- **CVE Number:** [CVE-2019-9712](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9712)

### Description

The JSON handler in com\_config lacks input validation, leading to XSS vulnerability.

### Affected Installs

Joomla! CMS versions 3.2.0 through 3.9.3

### Solution

Upgrade to version 3.9.4

### Contact

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

**Reported By:** Mario Korth, [Hackmanit](https://www.joomlalondon.co.uk/https:/www.hackmanit.de/)Read more  [http://feeds.joomla.org/~r/JoomlaSecurityNews/~3/JvJtucwH0Xs/772-20190301-core-xss-in-com-config-json-handler.html](http://feeds.joomla.org/~r/JoomlaSecurityNews/~3/JvJtucwH0Xs/772-20190301-core-xss-in-com-config-json-handler.html "[20190301] - Core - XSS in com_config JSON handler")

##  [ Login as... ](https://www.joomlalondon.co.uk/official-joomla-announcements/login-as)

Simple and lightweight plugin will help switch user just in two clicks.
Very useful when developing content or extensions for different groups of users. Movable block, you can move it everywhere, save coordinates after moving.

Read more  [http://feeds.joomla.org/~r/JoomlaExtensions/~3/-iee3R4ckuA/login-as](http://feeds.joomla.org/~r/JoomlaExtensions/~3/-iee3R4ckuA/login-as "Login as...")

##  [ Osmembership - Efat ](https://www.joomlalondon.co.uk/official-joomla-announcements/osmembership-efat)

If you are looking for **Joomla electronic invoicing** solution, this is the plugin right for you. It is available to generate the XMLs of electronic invoices for Membership Pro, and it solves all the problems associated with **elctronic invoicing in Joomla**!

THIS EXTENSION HAS BEEN MADE MAINLY FOR ITALIAN BUSINESSES AND ITALIAN JOOMLA USERS TO MATCH ITALIAN ELECTRONIC INVOICING LAW. PLEASE, READ THE DESCRIPTION IN ITALIAN LANGUAGE ON OUR WEBSITE.

From 1st of Janaury 2019 the electronic invoice joins fully in entrepreneur and professional life. If you sell on the web, through your e-commerce and Joomla! web-site, you are searching for a solution to automate the creation process of XML, producing files formally corret as approved from Interchanging System (SdI) of the Italian Fiscal Agency.

This plugin answer right to this: connect it to your Joomla! web-site with Membership Pro, set the option based on your business needs, and focus only on your business growth! It is the plugin that generates for you XMLs ready to send to the Interchange System (SdI).

And if you use an Invoice Management System, like Fattura24, our plugin allows you to upload directly your invoices on the cloud without lift a finger! Through simple API call (you can insert the API key, provided from your Invoice Management System, directly from the plugin in the Joomla! backend) you will find all your generated electronic invoices on your Invoice Management System Fattura24!

Say Goodbye to headaches from worring about how to create an electronic invoice if you have a Joomla! web-site, if you have a business that work in or out of Italy, or you work with the end customer (B2C) or professionals and other businesses (B2B): this plugin allows you to generate always a legally correct XML, choosing the right option (the right Destination Code - "Codice Destinatario" - or the right Certified Electronic Mail - "PEC" -).

Don't loose your time to with electronic invoice, focus on your business growth. Leave us the annoying job: with this plugin based on your business needs, now you can do it.

Read more  [http://feeds.joomla.org/~r/JoomlaExtensions/~3/q3FWRYFAmWs/osmembership-efat](http://feeds.joomla.org/~r/JoomlaExtensions/~3/q3FWRYFAmWs/osmembership-efat "Osmembership - Efat")

1. [ Prayer](https://www.joomlalondon.co.uk/official-joomla-announcements/prayer)
2. [ Add Stylesheet](https://www.joomlalondon.co.uk/official-joomla-announcements/add-stylesheet)
3. [ OJ Astonish Block](https://www.joomlalondon.co.uk/official-joomla-announcements/oj-astonish-block)
4. [ Accessibility Enabler](https://www.joomlalondon.co.uk/official-joomla-announcements/accessibility-enabler)

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## 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" } ] }
```