What is the CVSS score of CVE-2026-28413?

CVE-2026-28413 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Open Redirect are affected by CVE-2026-28413?

Organizations using Plone. should be aware of moderate risk from CVE-2026-28413 rated CVSS 5.3. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2026-28413?

Within 30 days: Identify affected systems running Plone. and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Open Redirect CVE-2026-28413

MEDIUM

URL Redirection to Untrusted Site (Open Redirect) (CWE-601)

2026-03-05 security-advisories@github.com

GHSA-43gx-6gv6-3jcp

Open Redirect Isurlinportal

5.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.3 MEDIUM

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 21:16 nvd

MEDIUM 5.3

DescriptionGitHub Advisory

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.

AnalysisAI

Products.isurlinportal is a replacement for isURLInPortal method in Plone. versions up to 2.1.0 is affected by url redirection to untrusted site (open redirect) (CVSS 5.3).

Technical ContextAI

This vulnerability (CWE-601: URL Redirection to Untrusted Site (Open Redirect)) affects Products.isurlinportal is a replacement for isURLInPortal method in Plone.. 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.

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

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CVE-2026-28413 vulnerability details – vuln.today

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Open Redirect CVE-2026-28413

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

Technical ContextAI

RemediationAI

More in Open Redirect

Same weakness CWE-601 – URL Redirection to Untrusted Site (Open Redirect)

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External POC / Exploit Code