CVE-2013-4200 EXPLOIT
5.8
MEDIUM · CVSS 2.0 · EPSS 2.2% (pctl 82)
Patch early
A public exploit exists.
Description
The isURLInPortal method in the URLTool class in in_portal.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 treats URLs starting with a space as a relative URL, which allows remote attackers to bypass the allow_external_login_sites filtering property, redirect users to arbitrary web sites, and conduct phishing attacks via a space before a URL in the "next" parameter to acl_users/credentials_cookie_auth/require_login.
Scoring
| CVSS | 5.8 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:P/I:P/A:N |
| EPSS | 2.22% — more likely to be exploited than 82% of all CVEs |
| Weakness | CWE-264 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2014-01-21 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| plone | plone |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Plone - 'in_portal.py' < 4.1.3 Session Hijacking | 2013-07-31 |
References
- http://plone.org/products/plone-hotfix/releases/20130618
- http://plone.org/products/plone/security/advisories/20130618-announcement
- http://www.openwall.com/lists/oss-security/2013/08/01/2
- http://www.securityfocus.com/archive/1/530787/100/0/threaded
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200
- http://plone.org/products/plone-hotfix/releases/20130618
- http://plone.org/products/plone/security/advisories/20130618-announcement
- http://www.openwall.com/lists/oss-security/2013/08/01/2
- http://www.securityfocus.com/archive/1/530787/100/0/threaded
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200
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