CVE-2006-2141: Cross-site scripting (XSS) vulnerability in popup_image in Collaborative Portal Server (CPS) 3.4.0 and earlier

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MEDIUM 4.3DOWNGRADE

CVE-2006-2141 is a medium-severity flaw (CVSS 4.3) affecting collaborative portal server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in popup_image in Collaborative Portal Server (CPS) 3.4.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the pos argument.

Why this priority

EPSS top 10%: 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	3.9% (top 10%)
CISA exploited list	No
Published	2006-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: collaborative portal server project

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

Am I affected?

Timeline

2006-05-02 10:02 UTCPublished CVE record published
2026-06-16 22:24 UTCUpdated Record last modified

collaborative portal server project collaborative portal server DOWNGRADE

Affected: 3.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.4.0

1. Check installed version

apt-cache policy collaborative-portal-server || rpm -q collaborative-portal-server || collaborative-portal-server --version

2. No fixed release: DOWNGRADE to a release before 3.4.0 (Debian / Ubuntu)

apt-cache madison collaborative-portal-server sudo apt install collaborative-portal-server=<VERSION_BEFORE_3.4.0> sudo apt-mark hold collaborative-portal-server

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

dnf --showduplicates list collaborative-portal-server sudo dnf downgrade collaborative-portal-server-<VERSION_BEFORE_3.4.0> sudo dnf versionlock add collaborative-portal-server

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.

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: Collaborative Portal Server 3.4 - 'POS' 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-2006-2141?

collaborative portal server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2141 being exploited?

CVE-2006-2141 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-2006-2141 affect?

CVE-2006-2141 affects collaborative portal server. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in popup_image in Collaborative Portal Server (CPS) 3.4.0 and earlier allows remote attackers to inject arbitrary web script or HTML via the pos argument.

How urgent is CVE-2006-2141?

Priority 43/100. EPSS top 10%: very likely to be exploited; Public exploit reference

References

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