Secunia

Some vulnerabilities have been reported in MoinMoin, which can be exploited by malicious people to conduct cross-site scripting attacks, bypass security restrictions, manipulate certain data, or potentially compromise a vulnerable system.

1) Input passed to the "name" parameter when logging in is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerability is reported in versions prior to 1.6.1.

2) Input passed to action/AttachFile.py, to PageEditor.py when renaming or deleting a page, and to the gui editor (formatter/text_gedit.py), is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

3) Input passed to the MOIN_ID cookie parameter is not properly sanitised before being used. This can be exploited to overwrite arbitrary files via directory traversal attacks.

Successful exploitation may allow to inject and execute arbitrary PHP code but depends on certain file permissions and settings of the server.

4) An error within the enforcing of ACLs in wikimacro.py can be exploited to read restricted pages.

Vulnerabilities 2#, #3, and #4 are reported in version 1.5.8. Other versions may also be affected.

Solution
Update to version 1.6.1.
Further details available in Customer Area

Provided and/or discovered by
3) nonroot
4) spg

Changelog
Further details available in Customer Area

Original Advisory
MoinMoin:
http://hg.moinmo.in/moin/1.5/rev/2f952fa361c7
http://hg.moinmo.in/moin/1.5/rev/db212dfc58ef
http://hg.moinmo.in/moin/1.6/rev/9f4bdc7ef80d
http://hg.moinmo.in/moin/1.5/rev/4ede07e792dd
http://hg.moinmo.in/moin/1.5/rev/d0152eeb4499
http://moinmo.in/MoinMoinBugs/DictPagesNotAffectedByAcl

milw0rm:
http://www.milw0rm.com/exploits/4957

Deep Links
Links available in Customer Area