The archive management (arcmanage) page in wwsympa/wwsympa.fcgi.in in Sympa before 6.1.11 does not check permissions, which allows remote attackers to list, read, and delete arbitrary list archives via vectors related to the (1) doarcmanage, (2) doarcdownload, or (3) doarcdelete functions.

Sympa before 5.4 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message with a malformed value of the Content-Type header and unspecified other headers. NOTE: some of these details are obtained from third party information.