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.

Published: 2017-02-09 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-8936 is rated Moderate Risk (45.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.03%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-8936

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.29% 1.03% +0.74%
2 2025-03-17 0.18% 0.29% +0.11%
3 2023-03-07 — 0.18% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8936

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-8936

OS Trackers for CVE-2015-8936

vendor priority summary link
debian unimportant CVE-2015-8936 unimportant priority: Debian including 1 source packages (squidguard), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2015-8936
suse medium CVE-2015-8936 severity moderate: SUSE including 10 source package names (squidGuard-1.4-13.10.1, squidGuard-1.4-27.1, …), 30 product×package rows across 15 product lines (SUSE Linux Enterprise High Performance Computing 12 SP5, SUSE Linux Enterprise Server 11 SP1-TERADATA, … (15 product lines)): Fixed 30. https://www.suse.com/security/cve/CVE-2015-8936/
ubuntu medium CVE-2015-8936 medium priority: Ubuntu including 1 source packages (squidguard), 11 status rows across 11 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 7, ignored 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2015-8936

Affected software / configurations for CVE-2015-8936

Vendor Product Version Raw CPE
squidguard squidguard <= 1.4 cpe:2.3:a:squidguard:squidguard:*:*:*:*:*:*:*:*

References for CVE-2015-8936

cvelogic Threat Intelligence