Client-Side code injection through Mermaid markup in GitLab CE/EE 12.9 and later through 13.0.1 allows a specially crafted Mermaid payload to PUT requests on behalf of other users via clicking on a link
{
"cpe": [
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
"cpe:2.3:a:gitlab:gitlab:13.0.0:*:*:*:community:*:*:*",
"cpe:2.3:a:gitlab:gitlab:13.0.0:*:*:*:enterprise:*:*:*"
],
"extracted_events": [
{
"introduced": "12.9.0"
},
{
"fixed": "12.9.8"
},
{
"introduced": "12.10.0"
},
{
"fixed": "12.10.7"
},
{
"introduced": "13.0.0"
},
{
"last_affected": "13.0.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}