Answer in brief
CVE-2026-82842 records a High severity (CVSS 8.1) vulnerability in SAML Single Sign On < 6.0.0 - Unauthenticated Privilege Escalation via Account Matching. The current sources do not mark it as known exploited. The current feed maps Unknown/SAML Single Sign On (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Unknown/SAML Single Sign On (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Unknown/SAML Single Sign Ongeneric | >=4.8.43 <6.0.0 | 6.0.0 |
Published upstream
Sep 20, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 20, 2026
The SAML Single Sign On WordPress plugin before 6.0.0 does not honour the configured criterion for linking an incoming single sign-on identity to a WordPress account, always resolving the identity by login name whatever the site has chosen, which allows an attacker who can have the site's identity provider assert a login name of their choosing to authenticate as any account, including an administrator, without proving ownership of that account.
Quoted source text, attributed separately from HOL analysis.