CVE-2006-2990: Cross-site scripting (XSS) vulnerability in default.asp in VanillaSoft Helpdesk 2005 and earlier allows remote

Routine

MEDIUM 4.3DOWNGRADE

CVE-2006-2990 is a medium-severity flaw (CVSS 4.3) affecting vanillasoft helpdesk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in default.asp in VanillaSoft Helpdesk 2005 and earlier allows remote attackers to inject arbitrary web script or HTML via the username parameter.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.0% (top 20%)
CISA exploited list	No
Published	2006-06-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: vanillasoft

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

Am I affected?

Timeline

2006-06-13 01:02 UTCPublished CVE record published
2026-06-16 22:26 UTCUpdated Record last modified

vanillasoft vanillasoft helpdesk DOWNGRADE

Affected: 2005

Fixed in: no fixed release known

Safe to downgrade to: a release before 2005

1. Check installed version

apt-cache policy vanillasoft-helpdesk || rpm -q vanillasoft-helpdesk || vanillasoft-helpdesk --version

2. No fixed release: DOWNGRADE to a release before 2005 (Debian / Ubuntu)

apt-cache madison vanillasoft-helpdesk sudo apt install vanillasoft-helpdesk=<VERSION_BEFORE_2005> sudo apt-mark hold vanillasoft-helpdesk

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list vanillasoft-helpdesk sudo dnf downgrade vanillasoft-helpdesk-<VERSION_BEFORE_2005> sudo dnf versionlock add vanillasoft-helpdesk

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2006-2990?

vanillasoft helpdesk: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2990 being exploited?

CVE-2006-2990 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-2006-2990 affect?

CVE-2006-2990 affects vanillasoft helpdesk. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in default.asp in VanillaSoft Helpdesk 2005 and earlier allows remote attackers to inject arbitrary web script or HTML via the username parameter.

How urgent is CVE-2006-2990?

Priority 35/100. No elevated risk signals yet.

References

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