Directory traversal vulnerability in attachmentlibrary.php in the XStandard component for Joomla! 1.5.8 and earlier allows remote attackers to list arbitrary directories via a .. (dot dot) in the XCMSLIBRARYPATH HTTP header.

Multiple unspecified vulnerabilities in Joomla! before 1.0.12 have unknown impact and attack vectors related to (1) "unneeded legacy functions" and (2) "Several low level security fixes."

Cross-site scripting (XSS) vulnerability in Joomla! before 1.0.12 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, possibly related to poll.php or the module title.

Multiple cross-site scripting (XSS) vulnerabilities in Joomla! before 1.0.10 allow remote attackers to inject arbitrary web script or HTML via unspecified parameters involving the (1) getUserStateFromRequest function, and the (2) SEF and (3) commessages modules.

Joomla! 1.0.7 and earlier allows attackers to bypass intended access restrictions and gain certain privileges via certain attack vectors related to the (1) Weblink, (2) Polls, (3) Newsfeeds, (4) Weblinks, (5) Content, (6) Content Section, (7) Content Category, (8) Contact items, or (9) Contact Search, (10) Content Search, (11) Newsfeed Search, or (12) Weblink Search.

The vCard functions in Joomla! 1.0.5 use predictable sequential IDs for vcards and do not restrict access to them, which allows remote attackers to obtain valid e-mail addresses to conduct spam attacks by modifying the contactid parameter to index2.php.