When you visit a page where you need to login, Plone 2.5-5.1rc1 sends you to the login form with a 'came_from' parameter set to the previous url. After you login, you get redirected to the page you tried to view before. An attacker might try to abuse this by letting you click on a specially crafted link. You would login, and get redirected to the site of the attacker, letting you think that you are still on the original Plone site. Or some javascript of the attacker could be executed. Most of these types of attacks are already blocked by Plone, using the `isURLInPortal` check to make sure we only redirect to a page on the same Plone site. But a few more ways of tricking Plone into accepting a malicious link were discovered, and fixed with this hotfix.
CVSS Score
6.1
EPSS Score
0.002
Published
2018-01-03
A member of the Plone 2.5-5.1rc1 site could set javascript in the home_page property of his profile, and have this executed when a visitor click the home page link on the author page.
CVSS Score
5.4
EPSS Score
0.003
Published
2018-01-03
Accessing private content via str.format in through-the-web templates and scripts in Plone 2.5-5.1rc1. This improves an earlier hotfix. Since the format method was introduced in Python 2.6, this part of the hotfix is only relevant for Plone 4 and 5.
CVSS Score
6.5
EPSS Score
0.003
Published
2018-01-03
Multiple cross-site request forgery (CSRF) vulnerabilities in Zope Management Interface 4.3.7 and earlier, and Plone before 5.x.
CVSS Score
8.8
EPSS Score
0.003
Published
2017-09-25
Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator.
CVSS Score
5.9
EPSS Score
0.004
Published
2017-09-25
Cross-site scripting (XSS) vulnerability in Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.x before 4.3.7, and 5.0rc1.
CVSS Score
6.1
EPSS Score
0.005
Published
2017-09-25
Kupu 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, and 4.2.0 through 4.2.7 allows remote authenticated users to edit Kupu settings.
CVSS Score
6.8
EPSS Score
0.003
Published
2017-09-25
Plone 3.3.0 through 3.3.6 allows remote attackers to inject headers into HTTP responses.
CVSS Score
7.5
EPSS Score
0.004
Published
2017-09-25
Plone 4.x through 4.3.11 and 5.x through 5.0.6 allow remote attackers to bypass a sandbox protection mechanism and obtain sensitive information by leveraging the Python string format method.
CVSS Score
4.3
EPSS Score
0.002
Published
2017-03-23
Cross-site scripting (XSS) vulnerability in the URL checking infrastructure in Plone CMS 5.x through 5.0.6, 4.x through 4.3.11, and 3.3.x through 3.3.6 allows remote attackers to inject arbitrary web script or HTML via a crafted URL.
CVSS Score
6.1
EPSS Score
0.005
Published
2017-03-07