Updated advisory posts against rubysec/ruby-advisory-db@41fc67a

Author: simi

advisories/_posts/2026-01-27-CVE-2020-36939.md

@@ -0,0 +1,40 @@
+---
+layout: advisory
+title: 'CVE-2020-36939 (cassandra-web): Cassandra Web 0.5.0 contains a directory traversal
+  vulnerability'
+comments: false
+categories:
+- cassandra-web
+advisory:
+  gem: cassandra-web
+  cve: 2020-36939
+  ghsa: 8mfv-xhp5-48q9
+  url: https://nvd.nist.gov/vuln/detail/CVE-2020-36939
+  title: Cassandra Web 0.5.0 contains a directory traversal vulnerability
+  date: 2026-01-27
+  description: |-
+    Cassandra Web 0.5.0 contains a directory traversal vulnerability
+    that allows unauthenticated attackers to read arbitrary files by
+    manipulating path traversal parameters. Attackers can exploit the
+    disabled Rack::Protection module to read sensitive system files
+    like /etc/passwd and retrieve Apache Cassandra database credentials.
+  cvss_v3: 7.5
+  cvss_v4: 8.7
+  related:
+    url:
+    - https://nvd.nist.gov/vuln/detail/CVE-2020-36939
+    - https://github.com/avalanche123/cassandra-web/commit/f11e47a26f316827f631d7bcfec14b9dd94f44be#diff-f965f92b425fb2f75d38b491b2625fe21b8af20b7666217546bce8a42b198ea4Prot
+    - https://www.vulncheck.com/advisories/cassandra-web-remote-file-read
+    - https://www.exploit-db.com/exploits/49362
+    - https://github.com/advisories/GHSA-8mfv-xhp5-48q9
+  notes: |
+    - GHSA is unreviewed.
+    - cvss_v4 from GHSA and nvd.nist.gov
+    - cvss_v3 from nvd.nist.gov
+    - date from GHSA
+    - Last commit (included above) on 9/30/2020 changed "disable" to "enable"
+      but was never released.
+    - Release 0.5.0 (https://rubygems.org/gems/cassandra-web/versions/0.5.0)
+      is last release on https://rubygems.org/gems/cassandra-web/versions.
+      - Only one tag (0.4.0) at https://github.com/avalanche123/cassandra-web/tags.
+---