CVE-2026-39963
1 advisory.
Packagist/s9y/serendipity CVE-2026-39963: medium 6.9, EPSS 0.30%
Serendipity has a Host Header Injection allows authentication cookie scoping to attacker-controlled domain in functions_config.inc.php
Action: Upgrade s9y/serendipity to 2.6.0 or later.
composer require s9y/serendipity:2.6.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.6.0 | - |
Fixed versions
| 2.6.0 |
Sources
- osv: GHSA-4m6c-649p-f6gf
- https://github.com/s9y/Serendipity/security/advisories/GHSA-4m6c-649p-f6gf
- https://nvd.nist.gov/vuln/detail/CVE-2026-39963
- https://github.com/s9y/Serendipity
- https://github.com/s9y/Serendipity/releases/tag/2.6.0
CVE-2026-39963 · published · modified · JSON