Vulnerability · Published Aug 2, 2021 · Assigned by GitHub_M
CVE-2021-32806URL Redirection to Untrusted Site ('Open Redirect') in Products.isurlinportal
Medium 6.5
In plain English
A medium-severity open redirect in Products.isurlinportal from plone. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Products.isurlinportal is a replacement for isURLInPortal method in Plone. Versions of Products.isurlinportal prior to 1.2.0 have an Open Redirect vulnerability. Various parts of Plone use the 'is url in portal' check for security, mostly to see if it is safe to redirect to a url. A url like `https://example.org` is not in the portal. The url `https:example.org` without slashes is considered to be in the portal. When redirecting, some browsers go to `https://example.org`, others give an error. Attackers may use this to redirect victims to their site, especially as part of a phishing attack. The problem has been patched in Products.isurlinportal 1.2.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | products-isurlinportal | 1.2.0 | GHSA-q3m9-9fj2-mfwr |
| PyPI | products-isurlinportal | 1.2.0 | PYSEC-2021-323 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| plone | Products.isurlinportal | < 1.2.0 |
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
References
- https://github.com/plone/Products.isurlinportal/security/advisories/GHSA-q3m9-9fj2-mfwr x_refsource_CONFIRM
- https://github.com/plone/Products.isurlinportal/commit/d4fd34990d18adf05a10dc5e2bb4b066798280ba x_refsource_MISC
- JVN#50804280 third-party-advisory, x_refsource_JVN