CVE-2026-67351: Serendipity < 2.6.1 Authentication Bypass via Username Collision
s9y · Serendipity
Fixed in 2.6.1 · Affected: s9y Serendipity before 2.6.1 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 46% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- s9y · Serendipitybefore 2.6.1
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-67351 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.