What is CVE-2016-9752?

CVE-2016-9752 is a high-severity vulnerability in S9y Serendipity, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2016-12-01.

How severe is CVE-2016-9752?

High severity. CVSS v3 base score is 8.6 out of 10.

SSRF in S9y Serendipity

CVE-2016-9752

In Serendipity before 2.0.5, an attacker can bypass SSRF protection by using a malformed IP address (e.g., http://127.1) or a 30x (aka Redirection) HTTP status code.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2016-12-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

S9y Serendipity

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.securityfocus.com/bid/94622 (vdb-entry)
blog.s9y.org/archives/271-Serendipity-2.0.5-and-2.1-beta3-released.html (Vendor Advisory)
github.com/s9y/Serendipity/commit/fbdd50a448ed87ba34ea8c56446b8f1873eadd6f (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2016-9752?: CVE-2016-9752 is a high-severity vulnerability in S9y Serendipity, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2016-12-01.
How severe is CVE-2016-9752?: High severity. CVSS v3 base score is 8.6 out of 10.