CVE-2009-4348: Cross-site scripting (XSS) vulnerability in index.php in Harold Bakker's NewsScript (HB-NS) 1.3 allows remote

Routine

MEDIUM 4.3DOWNGRADE

CVE-2009-4348 is a medium-severity flaw (CVSS 4.3) affecting hb-ns. 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 Harold Bakker's NewsScript (HB-NS) 1.3 allows remote attackers to inject arbitrary web script or HTML via the topic parameter in a topic action, a different vector than CVE-2006-2146.

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	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-12-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: haroldbakker

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

Am I affected?

Timeline

2009-12-17 17:30 UTCPublished CVE record published
2026-06-16 23:13 UTCUpdated Record last modified

haroldbakker hb-ns DOWNGRADE

Affected: 1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3

1. Check installed version

apt-cache policy hb-ns || rpm -q hb-ns || hb-ns --version

2. No fixed release: DOWNGRADE to a release before 1.3 (Debian / Ubuntu)

apt-cache madison hb-ns sudo apt install hb-ns=<VERSION_BEFORE_1.3> sudo apt-mark hold hb-ns

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

dnf --showduplicates list hb-ns sudo dnf downgrade hb-ns-<VERSION_BEFORE_1.3> sudo dnf versionlock add hb-ns

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-2009-4348?

hb-ns: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-4348 being exploited?

CVE-2009-4348 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-2009-4348 affect?

CVE-2009-4348 affects hb-ns. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in index.php in Harold Bakker's NewsScript (HB-NS) 1.3 allows remote attackers to inject arbitrary web script or HTML via the topic parameter in a topic action, a different vector than CVE-2006-2146.

How urgent is CVE-2009-4348?

Priority 35/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2009-4262 HIGH 7.5 DOWNGRADE Harold Bakker's NewsScript (HB-NS) 1.3 allows remote attackers to obtain access to the admin control panel via
CVE-2006-2146 MEDIUM 5.8 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in index.php in HB-NS 1.1.6 allow remote attackers to inje
CVE-2006-2145 MEDIUM 6.4 DOWNGRADE Multiple SQL injection vulnerabilities in index.php in HB-NS 1.1.6 allow remote attackers to execute arbitrary

References

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