PT-2026-22990 · Plone · Products.Isurlinportal

Published 2026-03-02 · Updated 2026-03-07 · CVE-2026-28413

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Products.isurlinportal versions prior to 2.1.0 Products.isurlinportal versions prior to 3.1.0 Products.isurlinportal versions prior to 4.0.0

Description A specially crafted URL, such as /login?came from=////evil.example, could redirect a user to an external website after successful login. This issue affects customized Plone installations where the login process has been modified with add-ons. The vulnerability lies in the insufficient validation of the redirect URL within the Products.isurlinportal package, potentially allowing an attacker to trick Plone into redirecting to a malicious website. The check for valid redirect URLs within the Products.isurlinportal package had a loophole.

Recommendations Versions prior to 2.1.0: Upgrade to Products.isurlinportal version 2.1.0. Versions prior to 3.1.0: Upgrade to Products.isurlinportal version 3.1.0. Versions prior to 4.0.0: Upgrade to Products.isurlinportal version 4.0.0.

Exploit

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2026-28413

GHSA-43GX-6GV6-3JCP

PYSEC-2026-112

Affected Products

Products.Isurlinportal

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28413.json · Exploit
• https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-112 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-28413 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-28413 · Security Note
• https://osv.dev/vulnerability/GHSA-43gx-6gv6-3jcp · Vendor Advisory
• https://github.com/pypa/advisory-database/tree/main/vulns/products-isurlinportal/PYSEC-2026-112.yaml · Note
• https://github.com/plone/Products.isurlinportal · Note
• https://twitter.com/CVEnew/status/2030385213742760299 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2029689600743006397 · Twitter Post