CVE-2008-6565: Cross-site scripting (XSS) vulnerability in Invision Power Board 2.3.1 and earlier allows remote attackers to

Q: How do I fix CVE-2008-6565?

invision power board: upgrade to newer than 2.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2008-6565 being exploited?

CVE-2008-6565 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-2008-6565 affect?

CVE-2008-6565 affects invision power board. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Invision Power Board 2.3.1 and earlier allows remote attackers to inject arbitrary web script or HTML via an IFRAME tag in the signature.

Q: How urgent is CVE-2008-6565?

Priority 38/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2008-6565 is a medium-severity flaw (CVSS 4.3) affecting invision power board. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in Invision Power Board 2.3.1 and earlier allows remote attackers to inject arbitrary web script or HTML via an IFRAME tag in the signature.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-03-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: invision power services

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

Am I affected?

Timeline

2009-03-31 17:30 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

invision power services invision power board UPGRADE

Affected: <= 2.3.1 · 1.0 · 1.0.1 · 1.0.3 · 1.1.1 · 1.1.2 · 1.2 · 1.3

Fixed in: newer than 2.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy invision-power-board || rpm -q invision-power-board || invision-power-board --version

2. UPGRADE to newer than 2.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade invision-power-board

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade invision-power-board

Note

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

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: Invision Power Board 2.x - 'Signature' iFrame Security

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-2008-6565?

invision power board: upgrade to newer than 2.3.1. Exact commands for each OS are on this page.

Is CVE-2008-6565 being exploited?

CVE-2008-6565 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-2008-6565 affect?

CVE-2008-6565 affects invision power board. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Invision Power Board 2.3.1 and earlier allows remote attackers to inject arbitrary web script or HTML via an IFRAME tag in the signature.

How urgent is CVE-2008-6565?

Priority 38/100. Public exploit reference

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References

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