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CVE-2026-42794 Reflected XSS via backslash bypass in GraphiQL js_escape in absinthe_plug

🗓️ 08 May 2026 15:42:40Reported by EEFType 
cvelist
 cvelist
🔗 www.cve.org👁 72 Views

Reflected XSS in GraphiQL due to backslash bypass in absinthe_plug js_escape not escaping backslashes.

Related
Affected
Refs
[
  {
    "collectionURL": "https://repo.hex.pm",
    "cpes": [
      "cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.Absinthe.Plug.GraphiQL'"
    ],
    "packageName": "absinthe_plug",
    "packageURL": "pkg:hex/absinthe_plug",
    "product": "absinthe_plug",
    "programFiles": [
      "lib/absinthe/plug/graphiql.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Absinthe.Plug.GraphiQL':js_escape/1"
      }
    ],
    "repo": "https://github.com/absinthe-graphql/absinthe_plug",
    "vendor": "absinthe-graphql",
    "versions": [
      {
        "lessThan": "1.5.10",
        "status": "affected",
        "version": "1.2.0",
        "versionType": "semver"
      }
    ]
  },
  {
    "collectionURL": "https://github.com",
    "cpes": [
      "cpe:2.3:a:absinthe-graphql:absinthe_plug:*:*:*:*:*:*:*:*"
    ],
    "defaultStatus": "unaffected",
    "modules": [
      "'Elixir.Absinthe.Plug.GraphiQL'"
    ],
    "packageName": "absinthe-graphql/absinthe_plug",
    "packageURL": "pkg:github/absinthe-graphql/absinthe_plug",
    "product": "absinthe_plug",
    "programFiles": [
      "lib/absinthe/plug/graphiql.ex"
    ],
    "programRoutines": [
      {
        "name": "'Elixir.Absinthe.Plug.GraphiQL':js_escape/1"
      }
    ],
    "repo": "https://github.com/absinthe-graphql/absinthe_plug",
    "vendor": "absinthe-graphql",
    "versions": [
      {
        "lessThan": "23a0d5658d32420086711adf4ce8f05febb09963",
        "status": "affected",
        "version": "26241817cb4b9be4de3f5972c5fba3d36de3d713",
        "versionType": "git"
      }
    ]
  }
]

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