Vulnerability Name:

CVE-2021-33512 (CCN-202369)

Assigned:2021-05-21
Published:2021-05-21
Updated:2021-05-24
Summary:Plone through 5.2.4 allows stored XSS attacks (by a Contributor) by uploading an SVG or HTML document.
CVSS v3 Severity:5.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
7.2 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N)
6.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-79
Vulnerability Consequences:Cross-Site Scripting
References:Source: MITRE
Type: CNA
CVE-2021-3313

Source: MITRE
Type: CNA
CVE-2021-33512

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210522 Re: Plone security hotfix 20210518

Source: XF
Type: UNKNOWN
plonecms-cve202133512-xss(202369)

Source: CCN
Type: Plone Web site
Plone

Source: MISC
Type: Vendor Advisory
https://plone.org/security/hotfix/20210518/stored-xss-from-file-upload-svg-html

Source: CCN
Type: oss-sec Mailing List, Sat, 22 May 2021 13:34:10 +0200
Re: Plone security hotfix 20210518

Vulnerable Configuration:Configuration 1:
  • cpe:/a:plone:plone:*:*:*:*:*:*:*:* (Version <= 5.2.4)

    • * Denotes that component is vulnerable
    BACK
    plone plone *