June 15, 2023, 9:15 p.m. |

National Vulnerability Database web.nvd.nist.gov

An open redirect vulnerability exists in the /preauth Servlet in Zimbra Collaboration Suite through 9.0 and 8.8.15. To exploit the vulnerability, an attacker would need to have obtained a valid zimbra auth token or a valid preauth token. Once the token is obtained, an attacker could redirect a user to any URL if url sanitisation is bypassed in incoming requests. NOTE: this is similar, but not identical, to CVE-2021-34807.

auth collaboration cve exploit open redirect token url valid vulnerability zimbra zimbra collaboration suite

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