What is CVE-2017-12777?

CVE-2017-12777 is a medium-severity vulnerability in Nexusphp Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-08-09.

How severe is CVE-2017-12777?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2017-12777 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Nexusphp Project

CVE-2017-12777

Cross-Site Scripting (XSS) exists in NexusPHP version v1.5 via some parameter to usersearch.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-08-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Nexusphp Project — versions 1.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

lu4n.com/cve/4.txt (Third Party Advisory)
www.d4rksec.org/cve/CVE-2017-12777.txt

Frequently asked questions

What is CVE-2017-12777?: CVE-2017-12777 is a medium-severity vulnerability in Nexusphp Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-08-09.
How severe is CVE-2017-12777?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2017-12777 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.