CVE-2026-28413 json
Products.isurlinportal: Possible open redirect when using more than 2 forward slashes
published 2026-03-02 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-9872 , GHSA-43gx-6gv6-3jcp , PYSEC-2026-112
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi products-isurlinportal 2.1.0, 3.1.0, 4.0.0
- plone isurlinportal 2.1.0, 3.1.0, 4.0.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | products-isurlinportal | >=4.0.0a1, <4.0.0 >=3.0.0, <3.1.0 <2.1.0 |
4.0.0 3.1.0 2.1.0 |
Affected products
- plone Products.isurlinportal
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
github.com
/plone/Products.isurlinportal/security/advisories/GHSA-43gx-6gv6-3jcp
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-28413
advisory
-
github.com
/plone/Products.isurlinportal
package
-
github.com
/pypa/advisory-database/tree/main/vulns/products-isurlinportal/PYSEC-2026-112.yaml
web
Sources
- CVE List CVE-2026-28413
- GitHub Advisory GHSA-43gx-6gv6-3jcp
- NVD CVE-2026-28413
- OSV PYSEC-2026-112
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.