ubuntu-cve-2025-31483
Vulnerability from osv_ubuntu
Published
2025-04-03 18:15
Modified
2026-07-02 16:06
Summary
Details

Miniflux is a feed reader. Due to a weak Content Security Policy on the /proxy/* route, an attacker can bypass the CSP of the media proxy and execute cross-site scripting when opening external images in a new tab/window. To mitigate the vulnerability, the CSP for the media proxy has been changed from default-src 'self' to default-src 'none'; form-action 'none'; sandbox;. This vulnerability is fixed in 2.2.7.

Severity
4.8 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "miniflux",
            "binary_version": "2.0.51-2ubuntu0.3+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "miniflux",
        "purl": "pkg:deb/ubuntu/miniflux@2.0.51-2ubuntu0.3+esm2?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.51-1",
        "2.0.51-2",
        "2.0.51-2ubuntu0.1",
        "2.0.51-2ubuntu0.2",
        "2.0.51-2ubuntu0.2+esm1",
        "2.0.51-2ubuntu0.3",
        "2.0.51-2ubuntu0.3+esm1",
        "2.0.51-2ubuntu0.3+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "miniflux",
            "binary_version": "2.2.6-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "miniflux",
        "purl": "pkg:deb/ubuntu/miniflux@2.2.6-2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.6-1",
        "2.2.6-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "miniflux",
            "binary_version": "2.2.16-2ubuntu0.26.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "miniflux",
        "purl": "pkg:deb/ubuntu/miniflux@2.2.16-2ubuntu0.26.04.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.6-2",
        "2.2.13-1",
        "2.2.16-2",
        "2.2.16-2ubuntu0.26.04.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "Miniflux is a feed reader. Due to a weak Content Security Policy on the /proxy/* route, an attacker can bypass the CSP of the media proxy and execute cross-site scripting when opening external images in a new tab/window. To mitigate the vulnerability, the CSP for the media proxy has been changed from default-src \u0027self\u0027 to default-src \u0027none\u0027; form-action \u0027none\u0027; sandbox;. This vulnerability is fixed in 2.2.7.",
  "id": "UBUNTU-CVE-2025-31483",
  "modified": "2026-07-02T16:06:16Z",
  "published": "2025-04-03T18:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-31483"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-31483"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/miniflux/v2/commit/cb695e653a08af4cabcb277c271ce74bd0c746e6"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/miniflux/v2/security/advisories/GHSA-cq88-842x-2jhp"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-31483"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.