CVE-2012-5906: Multiple cross-site scripting (XSS) vulnerabilities in GreenBrowser 6.1.0117 and 6.1.0216 allow remote attacke

Routine

MEDIUM 4.3DOWNGRADE

CVE-2012-5906 is a medium-severity flaw (CVSS 4.3) affecting greenbrowser. 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 GreenBrowser 6.1.0117 and 6.1.0216 allow remote attackers to inject arbitrary web script or HTML via (1) the URI in an about: page or (2) the last visited URL in the LastVisitWriteEn function in function.js.

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	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-79
Published	2012-11-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: morequick

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

Am I affected?

Timeline

2012-11-17 21:55 UTCPublished CVE record published
2026-06-16 23:47 UTCUpdated Record last modified

morequick greenbrowser DOWNGRADE

Affected: 6.1.0117 · 6.1.0216

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.1.0117

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.1.0117 (Debian / Ubuntu)

apt-cache madison greenbrowser sudo apt install greenbrowser=<VERSION_BEFORE_6.1.0117> sudo apt-mark hold greenbrowser

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

dnf --showduplicates list greenbrowser sudo dnf downgrade greenbrowser-<VERSION_BEFORE_6.1.0117> sudo dnf versionlock add greenbrowser

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-2012-5906?

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

Is CVE-2012-5906 being exploited?

CVE-2012-5906 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-2012-5906 affect?

CVE-2012-5906 affects greenbrowser. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in GreenBrowser 6.1.0117 and 6.1.0216 allow remote attackers to inject arbitrary web script or HTML via (1) the URI in an about: page or (2) the last visited URL in the LastVisitWriteEn fu

How urgent is CVE-2012-5906?

Priority 38/100. Public exploit reference

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References

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