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CVE-2026-67351

Serendipity < 2.6.1 Authentication Bypass via Username Collision PUBLISHED

Description (CNA)

Serendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record. An authenticated Editor can create a username collision with an Administrator account and obtain administrative privileges by logging in with their own password while the session loads the Administrator's account data.

Affected (CNA)

Vendor / productVersions
s9y / Serendipityaffected 0 before 2.6.1; unaffected 2.6.1

CWE

CWE-304

References

ADP enrichment

CISA-ADP

No English description supplied.