Cross-site scripting in Plone

1) Cross-site scripting

EUVDB-ID: #VU44998

Risk: Low

CVSSv3.1: 1.4 [CVSS:3.1/AV:N/AC:L/PR:/UI:N/S:U/C:N/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2011-1949

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

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the safe_html filter in Products.PortalTransforms in Plone 2.1 through 4.1. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Plone: 2.1 - 4.1

External links

http://osvdb.org/72728
http://plone.org/products/plone/security/advisories/CVE-2011-1949
http://secunia.com/advisories/44775
http://secunia.com/advisories/44776
http://securityreason.com/securityalert/8269
http://www.securityfocus.com/archive/1/518155/100/0/threaded
http://www.securityfocus.com/bid/48005
http://exchange.xforce.ibmcloud.com/vulnerabilities/67694

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.