CVE-2026-28413
Products.isurlinportal: Possible open redirect when using more than 2 forward slashes
Description
Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?came_from=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0, and 4.0.0.
INFO
Published Date :
March 5, 2026, 9:16 p.m.
Last Modified :
March 17, 2026, 6:32 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update to Plone version 2.1.0 or later.
- Update to Plone version 3.1.0 or later.
- Update to Plone version 4.0.0 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28413.
| URL | Resource |
|---|---|
| https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28413 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28413
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28413 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28413 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:plone:isurlinportal:*:*:*:*:*:plone:*:* versions up to (excluding) 2.1.0 *cpe:2.3:a:plone:isurlinportal:*:*:*:*:*:plone:*:* versions from (including) 3.0.0 up to (excluding) 3.1.0 *cpe:2.3:a:plone:isurlinportal:4.0.0:alpha1:*:*:*:plone:*:* Added Reference Type GitHub, Inc.: https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp Types: Vendor Advisory -
New CVE Received by [email protected]
Mar. 05, 2026
Action Type Old Value New Value Added Description Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?came_from=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0, and 4.0.0. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-601 Added Reference https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp