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CVE-2018-0366

21
FAUCET Score

CVE-2018-0366 describes a reflected Cross-Site Scripting (XSS) vulnerability in the web-based management interface of Cisco Web Security Appliance (WSA) due to insufficient input validation. An unauthenticated, remote attacker could exploit this by tricking a user into clicking a crafted link. This medium-severity vulnerability (CVSS 6.1) allows for arbitrary script execution in the user's browser context or access to sensitive browser-based information. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.1.2-003CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:10.1.2-003:*:*:*:*:*:*:*
10.5.1-276CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:10.5.1-276:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.78%
Probability of exploitation in next 30 days
EPSS Percentile
76.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0178 is in the 88th percentile among its peer group of 26,220 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-wsa-xss
Vendor Advisory
securityfocus.com / bid/104724
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041282
Third Party AdvisoryVDB Entry