PYSEC-2026-2967

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

Zope Products.CMFCore before 2.5.1 and Products.PluggableAuthService before 2.6.2, as used in Plone through 5.2.4 and other products, allow Reflected XSS.

Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Impacted products
Name purl
products-pluggableauthservice pkg:pypi/products-pluggableauthservice
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "products-pluggableauthservice",
        "purl": "pkg:pypi/products-pluggableauthservice"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.0",
        "1.11.0",
        "1.11.1",
        "1.11.2",
        "1.11.3",
        "1.5.2",
        "1.5.2.1",
        "1.5.3",
        "1.5.4",
        "1.5.5",
        "1.6",
        "1.6.1",
        "1.6.2",
        "1.6.3",
        "1.6.4",
        "1.6.5",
        "1.7.0",
        "1.7.0b1",
        "1.7.0b2",
        "1.7.1",
        "1.7.2",
        "1.7.3",
        "1.7.4",
        "1.7.5",
        "1.7.6",
        "1.7.7",
        "1.7.8",
        "1.8.0",
        "1.9.0",
        "2.0",
        "2.0b1",
        "2.0b2",
        "2.0b3",
        "2.0b4",
        "2.0b5",
        "2.0b6",
        "2.1",
        "2.1.1",
        "2.2",
        "2.2.1",
        "2.3",
        "2.4",
        "2.5",
        "2.5.1",
        "2.6.0",
        "2.6.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-33507",
    "GHSA-35rg-466w-77h3"
  ],
  "details": "Zope Products.CMFCore before 2.5.1 and Products.PluggableAuthService before 2.6.2, as used in Plone through 5.2.4 and other products, allow Reflected XSS.",
  "id": "PYSEC-2026-2967",
  "modified": "2026-07-13T16:05:48.234983Z",
  "published": "2026-07-09T16:49:33.633106Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33507"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-35rg-466w-77h3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2021-79.yaml"
    },
    {
      "type": "WEB",
      "url": "https://plone.org/security/hotfix/20210518/reflected-xss-in-various-spots"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/05/22/1"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/products-pluggableauthservice"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Cross-site scripting in Products.CMFCore, Products.PluggableAuthService, Plone"
}



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Sightings

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.