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Vulnerability record · CVE-2020-10964 · published 25 March 2020

CVE-2020-10964: S9y serendipity unrestricted file upload vulnerability

S9y · Serendipity

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.

9.8 CVSS 3.1 Critical EPSS 2.8% · top 14.1% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score, v2 7.5
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.s9y.org/archives/290-Serendipity-2.3.4-released-security-update.html Vendor Advisory
https://github.com/s9y/Serendipity/releases/tag/2.3.4 Release NotesThird Party Advisory
https://blog.s9y.org/archives/290-Serendipity-2.3.4-released-security-update.html Vendor Advisory
https://github.com/s9y/Serendipity/releases/tag/2.3.4 Release NotesThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2005-1449S9y serendipity vulnerabilityUnknown vulnerability in serendipity_config_local.inc.php for Serendipity before 0.8 has unknown impact.EPSS 1.4%10.0CVE-2005-1452S9y serendipity vulnerabilitySerendipity before 0.8 allows Chief users to "hide plugins installed by other users."EPSS 1.4%9.8CVE-2011-1134S9y serendipity unrestricted file upload vulnerabilityCross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to execute arbitrary code in the im…EPSS 3.0%9.8CVE-2016-10752S9y serendipity unrestricted file upload vulnerabilityserendipity_moveMediaDirectory in Serendipity 2.0.3 allows remote attackers to upload and execute arbitrary PHP code because it mishandles an extensi…EPSS 2.3%9.8CVE-2016-10082S9y serendipity improper access control vulnerabilityinclude/functions_installer.inc.php in Serendipity through 2.0.5 is vulnerable to File Inclusion and a possible Code Execution attack during a first-…EPSS 2.9%8.8CVE-2023-31576S9y serendipity unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in Serendipity 2.4-beta1 allows attackers to execute arbitrary code via a crafted HTML or Javascript file.EPSS 1.1%8.8CVE-2017-8101S9y serendipity cross-site request forgery vulnerabilityThere is CSRF in Serendipity 2.0.5, allowing attackers to install any themes via a GET request.EPSS 0.60%8.8CVE-2017-5609S9y serendipity sql injection vulnerabilitySQL injection vulnerability in include/functions_entries.inc.php in Serendipity 2.0.5 allows remote authenticated users to execute arbitrary SQL comm…EPSS 1.6%

Source: NIST National Vulnerability Database (record CVE-2020-10964), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.