SAML SSO Standard: An open redirect
SAML SSO Standard is affected by an open redirect. Exposure depends on how the affected operation is made reachable by the site. A crafted link can redirect visitors from the trusted site to an attacker-controlled destination.
- Component
- SAML SSO Standard
- Plugin slug
saml-sp-single-sign-on- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jan 30, 2023
- Weakness
- Not assigned
This CVE was published Jan 30, 2023 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update SAML SSO Standard to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The SAML SSO Standard WordPress plugin version 16.0.0 before 16.0.8, SAML SSO Premium WordPress plugin version 12.0.0 before 12.1.0 and SAML SSO Premium Multisite WordPress plugin version 20.0.0 before 20.0.7 does not validate that the redirect parameter to its SSO login endpoint points to an internal site URL, making it vulnerable to an Open Redirect issue when the user is already logged in.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N