CVE-2026-28413

EUVD-2026-9872
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.
Open Redirect
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
ploneisurlinportal
𝑥
< 2.1.0
ploneisurlinportal
3.0.0 ≤
𝑥
< 3.1.0
ploneisurlinportal
4.0.0:alpha1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp