According to other LJ rumblings, a similar, trick going around quietly puts someone on your friends (or friends-of?) list, and this points to potential for some serious abuse here. (I can imagine a trick-link that does something obvious, like this one, but does so to divert attention from something sneaky and nasty it also does. Unlocking all your friends-only posts, for example, or just deleting them.)
LJ apparently considers this a vulnerability and is working on a fix.
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According to other LJ rumblings, a similar, trick going around quietly puts someone on your friends (or friends-of?) list, and this points to potential for some serious abuse here. (I can imagine a trick-link that does something obvious, like this one, but does so to divert attention from something sneaky and nasty it also does. Unlocking all your friends-only posts, for example, or just deleting them.)
LJ apparently considers this a vulnerability and is working on a fix.