GHSA-XPF3-P7GM-7756 BBOT's Symlink guard bypass in unarchive module allows planting symlinks during extraction

BBOT's unarchive module rejects archives containing symlink entries before extraction, but for zip and 7z archives it failed to detect symlinks whose listing carries a DOS-attribute prefix before the unix mode, as produced by legacy versions of p7zip. Such an archive, downloaded and extracted...