What is CVE-2015-9356?

CVE-2015-9356 is a medium-severity vulnerability in Wp-Vipergb Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-28.

How severe is CVE-2015-9356?

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

Is CVE-2015-9356 known to be exploited?

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

XSS in Wp-Vipergb Project

CVE-2015-9356

The wp-vipergb plugin before 1.3.16 for WordPress has XSS via add_query_arg() and remove_query_arg(), a different issue than CVE-2014-9460.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-08-28 · 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: 0.010 (61.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Wp-Vipergb Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wordpress.org/plugins/wp-vipergb/ (Third Party Advisory, Release Notes)
make.wordpress.org/plugins/2015/04/20/fixing-add_query_arg-and-remove_query_arg… (Third Party Advisory)

Frequently asked questions

What is CVE-2015-9356?: CVE-2015-9356 is a medium-severity vulnerability in Wp-Vipergb Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-28.
How severe is CVE-2015-9356?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2015-9356 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.