Cross-site request forgery (CSRF) vulnerability in Piwigo through 2.9.1 allows remote attackers to hijack the authentication of users for requests to delete permalinks via a crafted request.

Piwigo through 2.9.1 allows remote attackers to obtain sensitive information about the descriptive name of a permalink by examining the redirect URL that is returned in a request for the permalink ID number of a private album. The permalink ID numbers are easily guessed.

SQL injection vulnerability in the administrative backend in Piwigo through 2.9.1 allows remote users to execute arbitrary SQL commands via the catfalse or cattrue parameter in the comments or status page to catoptions.php.

Cross-site request forgery (CSRF) vulnerability in Piwigo through 2.9.1 allows remote attackers to hijack the authentication of users for requests to change a private album to public via a crafted request.

Cross-site request forgery (CSRF) vulnerability in Piwigo through 2.9.1 allows remote attackers to hijack the authentication of users for requests to unlock albums via a crafted request.