Typecho v1.3.0 was discovered to contain a Client IP Spoofing vulnerability, which allows attackers to falsify their IP addresses by specifying an arbitrary IP as value of X-Forwarded-For or Client-Ip headers while performing HTTP requests.
Typecho v1.3.0 was discovered to contain a race condition vulnerability in the post commenting function. This vulnerability allows attackers to post several comments before the spam protection checks if the comments are posted too frequently.