XML External Entity injection in Sparx Enterprise Architect

Enterprise Architect is vulnerable to XML External Entity (XXE) injection in the XSLT Debugger feature. When a user loads a crafted XML file containing a `DOCTYPE` with an external DTD reference, the parser processes external entities, allowing an attacker to read arbitrary files from the victim's filesystem. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 17.1 but may also affect other versions.

Sparx Enterprise Architect Client does not verify the receiver of OAuth2 credentials during OpenID authentication

Insufficiently Protected Credentials in Sparx Systems Pty Ltd. Sparx Enterprise Architect. Client does not verify the receiver of OAuth2 credentials during OpenID authentication

Authorization Bypass in Sparx Enterprise Architect

Sparx Enterprise Architect software has a security feature that limits user's actions to those specified in the role. An authenticated attacker can modify the Enterprise Architect client behavior (e.g. using a debugger) and log in as any other user or administrator - then it is possible to do every possible change to the repository. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 17.1 and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

Sparx Enterprise Architect Client reveals plaintext OAuth2 client secret

Insufficiently Protected Credentials vulnerability in Sparx Systems Pty Ltd. Sparx Enterprise Architect. Client reveals plaintext OAuth2 client secretDesktop client decodes the secret and uses the plaintext secret to exchange it into an access and id tokens as part of the OpenID authentication flow.

SQL injection vulnerability in Enterprise Architect 16.0.1605 32-bit allows attackers to run arbitrary SQL commands via the Find parameter in the Select Classifier dialog box..