CVE-2009-4890: Multiple cross-site scripting (XSS) vulnerabilities in the login application in vBook 4.2.17 allow remote atta

Routine

MEDIUM 4.3DOWNGRADE

CVE-2009-4890 is a medium-severity flaw (CVSS 4.3) affecting vbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in the login application in vBook 4.2.17 allow remote attackers to inject arbitrary web script or HTML via the (1) title and (2) message parameters.

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	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-79
Published	2010-06-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: retrieve

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

Am I affected?

Timeline

2010-06-11 14:30 UTCPublished CVE record published
2026-06-16 23:14 UTCUpdated Record last modified

retrieve vbook DOWNGRADE

Affected: 4.2.17

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2.17

1. Check installed version

apt-cache policy vbook || rpm -q vbook || vbook --version

2. No fixed release: DOWNGRADE to a release before 4.2.17 (Debian / Ubuntu)

apt-cache madison vbook sudo apt install vbook=<VERSION_BEFORE_4.2.17> sudo apt-mark hold vbook

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

dnf --showduplicates list vbook sudo dnf downgrade vbook-<VERSION_BEFORE_4.2.17> sudo dnf versionlock add vbook

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-2009-4890?

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

Is CVE-2009-4890 being exploited?

CVE-2009-4890 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-2009-4890 affect?

CVE-2009-4890 affects vbook. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in the login application in vBook 4.2.17 allow remote attackers to inject arbitrary web script or HTML via the (1) title and (2) message parameters.

How urgent is CVE-2009-4890?

Priority 31/100. No elevated risk signals yet.

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References

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