CVE-2017-9523

20

FAUCET Score

CVE-2017-9523 describes a Cross-Site Scripting (XSS) vulnerability in Sophos Web Appliance versions prior to 4.3.2, specifically within the FTP redirect page. This medium-severity vulnerability (CVSS 6.1) can be exploited remotely with low attack complexity, requiring user interaction, and could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code in common repositories like Metasploit or ExploitDB, nor significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		<= 4.3.1.4CPE matchmatch criteria	cpe:2.3:a:sophos:web_appliance::::::::

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

0.89%

Probability of exploitation in next 30 days

EPSS Percentile

55.7%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0089 is in the 66th percentile among its peer group of 26,236 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 (4)

beegovendor investigatingvia llm_extracted

lexmarkvendor investigatingvia llm_extracted

libreofficevendor investigatingvia llm_extracted

postgresqlvendor investigatingvia llm_extracted

Vendor Advisories (4)

beegollm-beego-125591d926a6b5d6MEDIUM

[R2] Sophos Web Protection Appliance ftp_redirect.php s Parameter Reflected XSS

postgresqlllm-postgresql-ca3ad9adbdd3a0c7MEDIUM

[R2] Sophos Web Protection Appliance ftp_redirect.php s Parameter Reflected XSS

lexmarkllm-lexmark-34e4abafe388069cMEDIUM

[R2] Sophos Web Protection Appliance ftp_redirect.php s Parameter Reflected XSS

libreofficellm-libreoffice-adfb3d8de8c223cbMEDIUM

[R2] Sophos Web Protection Appliance ftp_redirect.php s Parameter Reflected XSS

References

swa.sophos.com / rn/swa/concepts/ReleaseNotes_4.3.2.html

Release NotesVendor Advisory

securityfocus.com / bid/99016