[filegator/filegator] Improper user session handling in filegator

Session Fixation in GitHub repository filegator/filegator prior to 7.8.0.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-1849
• https://github.com/filegator/filegator/commit/fcd3995f64f5dfc6a4c2c059cc22a2fef1e81225
• https://huntr.dev/bounties/881f8f36-d5c8-470d-8261-f109e6d5db4b
• https://github.com/advisories/GHSA-47vg-483w-hp3m