Security bypass in Plone

Published: 2011-05-26 | Updated: 2016-12-27
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2011-1950
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Web applications / CMS

Vendor Plone

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Security bypass


Risk: Critical

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2011-1950

CWE-ID: CWE-862 - Missing Authorization

Exploit availability: No


The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper checking for authorization by A remote attacker can modify the properties of arbitrary accounts.

Successful exploitation of the vulnerability may result in attacker's access to the vulnerable system.

Note: the vulnerability was being actively exploited.


Update the latest version from vendor's website:

Vulnerable software versions

Plone: 4.0, 4.1

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.