CVE-2008-5059: Cross-site scripting (XSS) vulnerability in index.php in ModernBill 4.4 and earlier allows remote attackers to

Q: How do I fix CVE-2008-5059?

modernbill: upgrade to newer than 4.4.0. Exact commands for each OS are on this page.

Q: Is CVE-2008-5059 being exploited?

CVE-2008-5059 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-2008-5059 affect?

CVE-2008-5059 affects modernbill. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in index.php in ModernBill 4.4 and earlier allows remote attackers to inject arbitrary web script or HTML via a Javascript event in the new_language parameter in a login action.

Q: How urgent is CVE-2008-5059?

Priority 39/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2008-5059 is a medium-severity flaw (CVSS 4.3) affecting modernbill. 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 ModernBill 4.4 and earlier allows remote attackers to inject arbitrary web script or HTML via a Javascript event in the new_language parameter in a login action.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-79
Published	2008-11-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: modernbill

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

Am I affected?

Timeline

2008-11-13 11:30 UTCPublished CVE record published
2026-06-16 22:59 UTCUpdated Record last modified

modernbill modernbill UPGRADE

Affected: <= 4.4 · <= 4.4.0 · 2.01 · 2.02s · 3.0 beta · 3.1.0 · 3.1.3 · 4.0.1 rc7

Fixed in: newer than 4.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade modernbill

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade modernbill

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: ModernBill 4.4.x - Cross-Site Scripting / Remote File Inclusion

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-2008-5059?

modernbill: upgrade to newer than 4.4.0. Exact commands for each OS are on this page.

Is CVE-2008-5059 being exploited?

CVE-2008-5059 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-2008-5059 affect?

CVE-2008-5059 affects modernbill. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in index.php in ModernBill 4.4 and earlier allows remote attackers to inject arbitrary web script or HTML via a Javascript event in the new_language parameter in a login action.

How urgent is CVE-2008-5059?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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