CVE-2020-10964

9.8 criticalEPSS 2.8%

Critical (9.8) in s9y serendipity. EPSS 2.8% chance of exploitation in the next 30 days.

Serendipity before 2.3.4 on Windows allows remote attackers to execute arbitrary code because the filename of a renamed file may end with a dot. This file may then be renamed to have a .php filename.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2020-03-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

s9y:serendipity

References

https://blog.s9y.org/archives/290-Serendipity-2.3.4-released-security-update.html
https://github.com/s9y/Serendipity/releases/tag/2.3.4
https://blog.s9y.org/archives/290-Serendipity-2.3.4-released-security-update.html
https://github.com/s9y/Serendipity/releases/tag/2.3.4

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