What is CVE-2015-8936?

CVE-2015-8936 is a medium-severity vulnerability in Squidguard, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-02-09.

How severe is CVE-2015-8936?

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

Is CVE-2015-8936 known to be exploited?

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

XSS in Squidguard

CVE-2015-8936

Cross-site scripting (XSS) vulnerability in squidGuard.cgi in squidGuard before 1.5 allows remote attackers to inject arbitrary web script or HTML via a blocked site link.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-02-09 · 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: 0.011 (65.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% 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

Squidguard

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

www.openwall.com/lists/oss-security/2016/06/20/6 (mailing-list)
www.squidguard.org/Downloads/CHANGELOG
www.openwall.com/lists/oss-security/2016/06/20/2 (mailing-list)
www.securityfocus.com/bid/91305 (vdb-entry)
www.squidguard.org/Downloads/Patches/1.4/Readme.Patch-20150201

Frequently asked questions

What is CVE-2015-8936?: CVE-2015-8936 is a medium-severity vulnerability in Squidguard, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-02-09.
How severe is CVE-2015-8936?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2015-8936 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.