[Snyk] Fix for 27 vulnerabilities

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements.txt

⚠️ Warning

``` google-api-core 1.31.3 has requirement google-auth<2.0dev,>=1.25.0, but you have google-auth 2.3.3. djangocms-picture 3.0.0 requires easy-thumbnails, which is not installed. django-polymorphic 3.0.0 has requirement Django>=2.1, but you have Django 1.11.29. django-filer 2.0.2 requires django-mptt, which is not installed. django-filer 2.0.2 requires easy-thumbnails, which is not installed. django-cms 3.8.0 has requirement Django>=2.2, but you have Django 1.11.29. ```

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	369/1000 Why? Has a fix available, CVSS 3.1	Directory Traversal SNYK-PYTHON-DJANGO-1066259	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	509/1000 Why? Has a fix available, CVSS 5.9	Web Cache Poisoning SNYK-PYTHON-DJANGO-1076802	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	399/1000 Why? Has a fix available, CVSS 3.7	Directory Traversal SNYK-PYTHON-DJANGO-1090612	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	379/1000 Why? Has a fix available, CVSS 3.3	Directory Traversal SNYK-PYTHON-DJANGO-1279042	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	579/1000 Why? Has a fix available, CVSS 7.3	HTTP Header Injection SNYK-PYTHON-DJANGO-1290072	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Directory Traversal SNYK-PYTHON-DJANGO-1298665	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	429/1000 Why? Has a fix available, CVSS 4.3	Improper Input Validation SNYK-PYTHON-DJANGO-1298666	django: 3.1.4 -> 3.1.13	No	No Known Exploit
	686/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.3	SQL Injection SNYK-PYTHON-DJANGO-1315688	django: 3.1.4 -> 3.1.13	No	Proof of Concept
	589/1000 Why? Has a fix available, CVSS 7.5	Out-of-bounds Read SNYK-PYTHON-PILLOW-1055461	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Out-of-bounds Read SNYK-PYTHON-PILLOW-1055462	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	509/1000 Why? Has a fix available, CVSS 5.9	Out-of-bounds Write SNYK-PYTHON-PILLOW-1059090	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Out-of-bounds Read SNYK-PYTHON-PILLOW-1080635	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-PYTHON-PILLOW-1080654	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1081494	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1081501	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1081502	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	654/1000 Why? Has a fix available, CVSS 8.8	Heap-based Buffer Overflow SNYK-PYTHON-PILLOW-1082329	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Insufficient Validation SNYK-PYTHON-PILLOW-1082750	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1090584	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1090586	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1090587	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-PYTHON-PILLOW-1090588	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Out-of-bounds Read SNYK-PYTHON-PILLOW-1292150	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Out-of-bounds Read SNYK-PYTHON-PILLOW-1292151	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	494/1000 Why? Has a fix available, CVSS 5.6	Buffer Overflow SNYK-PYTHON-PILLOW-1316216	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-PYTHON-PILLOW-1319443	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit
	655/1000 Why? Has a fix available, CVSS 8.6	Out-of-bounds Read SNYK-PYTHON-PILLOW-1727377	pillow: 8.0.1 -> 8.3.2	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the effected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

---

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[codecov[bot]]

Codecov Report

Merging #105 (7f5b244) into master (0ff12c8) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #105   +/-   ##
=======================================
  Coverage   62.61%   62.61%           
=======================================
  Files         132      132           
  Lines        4916     4916           
=======================================
  Hits         3078     3078           
  Misses       1838     1838           

Flag	Coverage Δ
unittests	62.61% <ø> (ø)

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