CVE-2021-21337Medium· 5.7▾ TwilightPoC availableURL Redirection to Untrusted Site ('Open Redirect') in Products.PluggableAuthService
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 31.4 · likelihood 1.7 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
8.4%
Exploit-DB (last check)
What kind of vulnerability is it? Who is impacted?
Open redirect vulnerability - a maliciously crafted link to the login form and login functionality could redirect the browser to a different website.
Has the problem been patched? What versions should users upgrade to?
The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.1 and re-run the buildout, or if you used pip simply do pip install "Products.PluggableAuthService>=2.6.1"
Is there a way for users to fix or remediate the vulnerability without upgrading?
There is no workaround. Users are encouraged to upgrade.
Are there any links users can visit to find out more?
If you have any questions or comments about this advisory:
products-pluggableauthservice < 2.6.1Upgrade to a patched release:
products-pluggableauthservice 2.6.1Connected by shared product, vendor, weakness, or advisory.