CVE-2008-2997: Cross-site scripting (XSS) vulnerability in index.php in Gravity Board X (GBX) 2.0 Beta allows remote attacker

Routine

MEDIUM 4.3DOWNGRADE

CVE-2008-2997 is a medium-severity flaw (CVSS 4.3) affecting gravity board x. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in index.php in Gravity Board X (GBX) 2.0 Beta allows remote attackers to inject arbitrary web script or HTML via the subject parameter in a postnewsubmit (aka create new thread) action.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-79
Published	2008-07-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: gravityboardx

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

Am I affected?

Timeline

2008-07-03 18:41 UTCPublished CVE record published
2026-06-16 22:54 UTCUpdated Record last modified

gravityboardx gravity board x DOWNGRADE

Affected: 2.0 beta

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy gravity-board-x || rpm -q gravity-board-x || gravity-board-x --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison gravity-board-x sudo apt install gravity-board-x=<VERSION_BEFORE_2.0> sudo apt-mark hold gravity-board-x

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

dnf --showduplicates list gravity-board-x sudo dnf downgrade gravity-board-x-<VERSION_BEFORE_2.0> sudo dnf versionlock add gravity-board-x

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: Gravity Board X 2.0 Beta - SQL Injection / 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-2008-2997?

gravity board x: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-2997 being exploited?

CVE-2008-2997 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-2008-2997 affect?

CVE-2008-2997 affects gravity board x. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in index.php in Gravity Board X (GBX) 2.0 Beta allows remote attackers to inject arbitrary web script or HTML via the subject parameter in a postnewsubmit (aka create new thread) action.

How urgent is CVE-2008-2997?

Priority 38/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2005-2565 MEDIUM 5.0 DOWNGRADE Gravity Board X (GBX) 1.1 allows remote attackers to obtain sensitive information via (1) a 1 in the perm para
CVE-2005-2564 HIGH 7.5 DOWNGRADE Direct static code injection vulnerability in editcss.php in Gravity Board X (GBX) 1.1 allows remote attackers

References

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