CVE-2009-0303: Cross-site scripting (XSS) vulnerability in Web Help Desk before 9.1.18 allows remote attackers to inject arbi

Q: How do I fix CVE-2009-0303?

web help desk: upgrade to newer than 9.1.17. Exact commands for each OS are on this page.

Q: Is CVE-2009-0303 being exploited?

CVE-2009-0303 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2009-0303 affect?

CVE-2009-0303 affects web help desk. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Web Help Desk before 9.1.18 allows remote attackers to inject arbitrary web script or HTML via vectors related to "encoded JavaScript" and Helpdesk.woa.

Q: How urgent is CVE-2009-0303?

Priority 31/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2009-0303 is a medium-severity flaw (CVSS 4.3) affecting web help desk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in Web Help Desk before 9.1.18 allows remote attackers to inject arbitrary web script or HTML via vectors related to "encoded JavaScript" and Helpdesk.woa.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-01-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: webhelpdesk

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

Am I affected?

Timeline

2009-01-27 20:30 UTCPublished CVE record published
2026-06-16 23:04 UTCUpdated Record last modified

webhelpdesk web help desk UPGRADE

Affected: <= 9.1.17 · 8.0.20 · 8.0.21 · 8.0.22 · 8.2.0 · 8.2.0.1 · 8.2.0.2 · 8.2.0.3

Fixed in: newer than 9.1.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy web-help-desk || rpm -q web-help-desk || web-help-desk --version

2. UPGRADE to newer than 9.1.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade web-help-desk

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade web-help-desk

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2009-0303?

web help desk: upgrade to newer than 9.1.17. Exact commands for each OS are on this page.

Is CVE-2009-0303 being exploited?

CVE-2009-0303 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-2009-0303 affect?

CVE-2009-0303 affects web help desk. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Web Help Desk before 9.1.18 allows remote attackers to inject arbitrary web script or HTML via vectors related to "encoded JavaScript" and Helpdesk.woa.

How urgent is CVE-2009-0303?

Priority 31/100. No elevated risk signals yet.

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References

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