CVE-2021-33513 : Plone through 5.2.4 allows XSS via the inline

Plone through 5.2.4 allows XSS via the inline_diff methods in Products.CMFDiffTool.

Published 2021-05-21 22:15:09

Updated 2021-05-24 18:32:13

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-33513

Plone » Plone
Versions up to, including, (<=) 5.2.4
cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 21 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.5	LOW	AV:N/AC:M/Au:S/C:N/I:P/A:N	6.8	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	2.3	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

https://plone.org/security/hotfix/20210518/xss-vulnerability-in-cmfdifftool

XSS vulnerability in CMFDiffTool — Plone: Enterprise Level CMS - Free and OpenSource - Community Driven - Secure
Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/05/22/1

oss-security - Re: Plone security hotfix 20210518
Mailing List;Third Party Advisory

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