What’s Vulnerable › Vulnerabilities

CVE-2021-35959

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-30 · updated 2026-06-17
• Weakness: CWE-79

Description

In Plone 5.0 through 5.2.4, Editors are vulnerable to XSS in the folder contents view, if a Contributor has created a folder with a SCRIPT tag in the description field.

Affected products

• Plone CMS: from 5.0 through 5.2.4

References

• http://www.openwall.com/lists/oss-security/2021/06/30/2
• https://plone.org/security/hotfix/20210518/stored-xss-in-folder-contents
• http://www.openwall.com/lists/oss-security/2021/06/30/2
• https://plone.org/security/hotfix/20210518/stored-xss-in-folder-contents

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