A temporary fix has been issued for CVE-2021-24084, which can be exploited using the LPE exploitation approach for the HiveNightmare/SeriousSAM bug.
CISA Urges Sites to Patch Critical RCE in Discourse
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The patch, urgently rushed out on Friday, is an emergency fix for the widely deployed platform, whose No. 1 most trafficked site is Amazon’s Seller Central.