PYSEC-2026-2859

Vulnerability from pysec - Published: 2026-07-09 16:49 - Updated: 2026-07-13 16:05
VLAI
Details

Paste Script 1.7.5 and earlier does not properly set group memberships during execution with root privileges, which might allow remote attackers to bypass intended file-access restrictions by leveraging a web application that uses the local filesystem.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Impacted products
Name purl
pastescript pkg:pypi/pastescript
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pastescript",
        "purl": "pkg:pypi/pastescript"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3",
        "0.3.1",
        "0.4",
        "0.4.1",
        "0.4.2",
        "0.5",
        "0.5.1",
        "0.9",
        "0.9.6",
        "0.9.7",
        "0.9.8",
        "1.0",
        "1.1",
        "1.3",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.3.6",
        "1.6",
        "1.6.1",
        "1.6.1.1",
        "1.6.2",
        "1.6.3",
        "1.7",
        "1.7.2",
        "1.7.3",
        "1.7.4",
        "1.7.4.1",
        "1.7.4.2",
        "1.7.5",
        "2.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2012-0878",
    "GHSA-27px-qpmj-qg38"
  ],
  "details": "Paste Script 1.7.5 and earlier does not properly set group memberships during execution with root privileges, which might allow remote attackers to bypass intended file-access restrictions by leveraging a web application that uses the local filesystem.",
  "id": "PYSEC-2026-2859",
  "modified": "2026-07-13T16:05:29.029206Z",
  "published": "2026-07-09T16:49:46.570086Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-0878"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cdent/pastescript/commit/b5f36f2995e1ae117cc53d2bd458d7fb33e4cabe"
    },
    {
      "type": "WEB",
      "url": "https://bitbucket.org/ianb/pastescript/changeset/a19e462769b4"
    },
    {
      "type": "WEB",
      "url": "https://bitbucket.org/ianb/pastescript/pull-request/3/fix-group-permissions-for-pastescriptserve"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=796790"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pasteorg/pastescript"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/paste/PYSEC-2012-15.yaml"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20140723093519/http://secunia.com/advisories/50410"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20140803132259/http://secunia.com/advisories/48812"
    },
    {
      "type": "WEB",
      "url": "http://groups.google.com/group/paste-users/browse_thread/thread/2aa651ba331c2471"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2012-1206.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2012/02/23/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2012/02/23/4"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/pastescript"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-27px-qpmj-qg38"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Paste Script has improper group memberships permissions"
}



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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.


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