CVE-2006-4540: Cross-site scripting (XSS) vulnerability in learncenter.asp in Learn.com LearnCenter allows remote attackers t

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MEDIUM 6.8MITIGATE

CVE-2006-4540 is a medium-severity flaw (CVSS 6.8) affecting learncenter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in learncenter.asp in Learn.com LearnCenter allows remote attackers to inject arbitrary web script or HTML via the id parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Published	2006-09-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: learn.com

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

Am I affected?

Timeline

2006-09-05 23:04 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

learn.com learncenter MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy learncenter || rpm -q learncenter || learncenter --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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: Learn.com - 'Learncenter.asp' 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-2006-4540?

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

Is CVE-2006-4540 being exploited?

CVE-2006-4540 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-2006-4540 affect?

CVE-2006-4540 affects learncenter. Severity is medium (CVSS 6.8). Cross-site scripting (XSS) vulnerability in learncenter.asp in Learn.com LearnCenter allows remote attackers to inject arbitrary web script or HTML via the id parameter.

How urgent is CVE-2006-4540?

Priority 49/100. Public exploit reference

References

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