The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ../ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.
{
"extracted_events": [
{
"cpe": "cpe:2.3:a:b2evolution:b2evolution:6.8.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "6.8.4"
},
{
"last_affected": "6.8.4"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "e35f7c195d8c1103d2d981a48cda5ab45ecac48a"
}
],
"source": "REFERENCES_COMMIT"
}
]
}