CVE-2002-1060: Cross-site scripting (XSS) vulnerability in Blue Coat Systems (formerly CacheFlow) CacheOS on Client Accelerat

This month

MEDIUM 4.3MITIGATE

CVE-2002-1060 is a medium-severity flaw (CVSS 4.3) affecting cacheos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in Blue Coat Systems (formerly CacheFlow) CacheOS on Client Accelerator 4.1.06, Security Gateway 2.1.02, and Server Accelerator 4.1.06 allows remote attackers to inject arbitrary web script or HTML via a URL to a nonexistent hostname that includes the HTML, which is inserted into the resulting error page.

Why this priority

EPSS top 8%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	4.9% (top 8%)
CISA exploited list	No
Published	2002-10-04
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bluecoat

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2002-10-04 04:00 UTCPublished CVE record published
2026-06-16 21:58 UTCUpdated Record last modified

bluecoat cacheos MITIGATE

Affected: 3.1.17 · 3.1.18 · 3.1.19 · 3.1.21 · 4.0 · 4.0.11 · 4.0.12 · 4.0.13

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1.17

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Cacheflow CacheOS 3.1.x/4.0.x/4.1 - Unresolved Domain Cross-Site Scripting

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2002-1060?

cacheos: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-1060 being exploited?

CVE-2002-1060 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2002-1060 affect?

CVE-2002-1060 affects cacheos. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Blue Coat Systems (formerly CacheFlow) CacheOS on Client Accelerator 4.1.06, Security Gateway 2.1.02, and Server Accelerator 4.1.06 allows remote attackers to inject arbitrary web script or HTML v

How urgent is CVE-2002-1060?

Priority 43/100. EPSS top 8%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2002-0107 MEDIUM 5.0 DOWNGRADE Web administration interface in CacheFlow CacheOS 4.0.13 and earlier allows remote attackers to obtain sensiti

References

← Back to latest CVEs