Cross-site request forgery (CSRF) vulnerability in OpenCA PKI 0.9.2.5, and possibly earlier versions, allows remote attackers to perform unauthorized actions as authorized users via a link or IMG tag to RAServer.

OpenCA before 0.9.1.4 does not use the correct certificate in a chain to check the serial, which could cause OpenCA to accept revoked or expired certificates.

The libCheckSignature function in crypto-utils.lib for OpenCA 0.9.1.6 and earlier only compares the serial of the signer's certificate and the one in the database, which can cause OpenCA to incorrectly accept a signature if the certificate's chain is trusted by OpenCA's chain directory, allowing remote attackers to spoof requests from other users.

Cross-site scripting (XSS) vulnerability in the web frontend in OpenCA 0.9.1-8 and earlier, and 0.9.2 RC6 and earlier, allows remote attackers to inject arbitrary web script or HTML via the form input fields.