| Package | Affected versions | Patched versions |
|---|---|---|
| xchat | = 1.4.2= 1.4.3 |
XChat 1.8.7 and earlier, including default configurations of 1.4.2 and 1.4.3, allows remote attackers to execute arbitrary IRC commands as other clients via encoded characters in a PRIVMSG command that calls CTCP PING, which expands the characters in the client response when the percascii variable is set.
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