CVEvulnerability
CVE-2021-3313
5.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-05-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 3.5 LOW — AV:N/AC:M/Au:S/C:N/I:P/A:N
- Weaknesses
- CWE-79
Description
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 configurations
• plone plone (< 5.2.4)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- http://www.openwall.com/lists/oss-security/2021/05/22/1 Mailing List, Third Party Advisory
- https://plone.org/download/releases/5.2.3 Release Notes, Vendor Advisory
- https://plone.org/security/hotfix/20210518 Vendor Advisory
- https://www.compass-security.com/fileadmin/Research/Advisories/2021-07_CSNC-2021-013_XSS_in_Plone_CMS.txt Exploit, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/22/1 Mailing List, Third Party Advisory
- https://plone.org/download/releases/5.2.3 Release Notes, Vendor Advisory
- https://plone.org/security/hotfix/20210518 Vendor Advisory
- https://www.compass-security.com/fileadmin/Research/Advisories/2021-07_CSNC-2021-013_XSS_in_Plone_CMS.txt Exploit, Third Party Advisory