An issue was discovered in the acf-to-rest-api plugin through 3.1.0 for WordPress. It allows an insecure direct object reference via permalinks manipulation, as demonstrated by a wp-json/acf/v3/options/ request that reads sensitive information in the wp_options table, such as the login and pass values.
{
"cpe": "cpe:2.3:a:acf_to_rest_api_project:acf_to_rest_api:*:*:*:*:*:wordpress:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "3.1.0"
}
],
"source": "CPE_RANGE"
}