id: PYSEC-2021-78
details: Plone CMS until version 5.2.4 has a stored Cross-Site Scripting (XSS) vulnerability
  in the user fullname property and the file upload functionality. The user's input
  data is not properly encoded when being echoed back to the user. This data can be
  interpreted as executable code by the browser and allows an attacker to execute
  JavaScript in the context of the victim's browser if the victim opens a vulnerable
  page containing an XSS payload.
affected:
- package:
    name: plone
    ecosystem: PyPI
    purl: pkg:pypi/plone
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 5.2.4
  versions:
  - "3.2"
  - 3.2.1
  - 3.2.2
  - 3.2.3
  - 3.2a1
  - 3.2rc1
  - "3.3"
  - 3.3.1
  - 3.3.2
  - 3.3.3
  - 3.3.4
  - 3.3.5
  - 3.3.6
  - 3.3b1
  - 3.3rc1
  - 3.3rc2
  - 3.3rc3
  - 3.3rc4
  - 3.3rc5
  - "4.0"
  - 4.0.1
  - 4.0.10
  - 4.0.2
  - 4.0.3
  - 4.0.4
  - 4.0.5
  - 4.0.6
  - 4.0.7
  - 4.0.8
  - 4.0.9
  - 4.0a1
  - 4.0a2
  - 4.0a3
  - 4.0a4
  - 4.0a5
  - 4.0b1
  - 4.0b2
  - 4.0b3
  - 4.0b4
  - 4.0b5
  - 4.0rc1
  - "4.1"
  - 4.1.1
  - 4.1.2
  - 4.1.3
  - 4.1.4
  - 4.1.5
  - 4.1.6
  - 4.1a1
  - 4.1a2
  - 4.1a3
  - 4.1b1
  - 4.1b2
  - 4.1rc2
  - 4.1rc3
  - "4.2"
  - 4.2.1
  - 4.2.2
  - 4.2.3
  - 4.2.4
  - 4.2.5
  - 4.2.6
  - 4.2.7
  - 4.2a1
  - 4.2a2
  - 4.2b1
  - 4.2b2
  - 4.2rc1
  - 4.2rc2
  - "4.3"
  - 4.3.1
  - 4.3.10
  - 4.3.11
  - 4.3.12
  - 4.3.13
  - 4.3.14
  - 4.3.15
  - 4.3.16
  - 4.3.17
  - 4.3.18
  - 4.3.19
  - 4.3.2
  - 4.3.20
  - 4.3.3
  - 4.3.4
  - 4.3.5
  - 4.3.6
  - 4.3.7
  - 4.3.8
  - 4.3.9
  - 4.3a1
  - 4.3a2
  - 4.3b1
  - 4.3b2
  - 4.3rc1
  - "5.0"
  - 5.0.1
  - 5.0.10
  - 5.0.2
  - 5.0.3
  - 5.0.4
  - 5.0.5
  - 5.0.6
  - 5.0.7
  - 5.0.8
  - 5.0.9
  - 5.0a1
  - 5.0a2
  - 5.0a3
  - 5.0b1
  - 5.0b2
  - 5.0b3
  - 5.0b4
  - 5.0rc1
  - 5.0rc2
  - 5.0rc3
  - 5.1.0
  - 5.1.1
  - 5.1.2
  - 5.1.3
  - 5.1.4
  - 5.1.5
  - 5.1.6
  - 5.1.7
  - 5.1a1
  - 5.1a2
  - 5.1b1
  - 5.1b2
  - 5.1b3
  - 5.1b4
  - 5.1rc1
  - 5.1rc2
  - 5.2.0
  - 5.2.1
  - 5.2.2
  - 5.2.3
  - 5.2a1
  - 5.2a2
  - 5.2b1
  - 5.2rc1
  - 5.2rc2
  - 5.2rc3
  - 5.2rc4
  - 5.2rc5
references:
- type: WEB
  url: 
    https://www.compass-security.com/fileadmin/Research/Advisories/2021-07_CSNC-2021-013_XSS_in_Plone_CMS.txt
- type: WEB
  url: https://plone.org/download/releases/5.2.3
- type: WEB
  url: https://plone.org/security/hotfix/20210518
- type: WEB
  url: http://www.openwall.com/lists/oss-security/2021/05/22/1
- type: ADVISORY
  url: https://github.com/advisories/GHSA-hprr-4vfq-fcxw
aliases:
- CVE-2021-3313
- GHSA-hprr-4vfq-fcxw
modified: "2021-06-09T05:00:50.662546Z"
published: "2021-05-20T16:15:00Z"