CVE-2011-5159: Cross-site scripting (XSS) vulnerability in admin/configuration.php in Geeklog before 1.7.1sr1 allows remote a

Q: How do I fix CVE-2011-5159?

geeklog: upgrade to newer than 1.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2011-5159 being exploited?

CVE-2011-5159 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-2011-5159 affect?

CVE-2011-5159 affects geeklog. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in admin/configuration.php in Geeklog before 1.7.1sr1 allows remote attackers to inject arbitrary web script or HTML via the sub_group parameter, a different vulnerability than CVE-2011-4942.

Q: How urgent is CVE-2011-5159?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2011-5159 is a medium-severity flaw (CVSS 4.3) affecting geeklog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in admin/configuration.php in Geeklog before 1.7.1sr1 allows remote attackers to inject arbitrary web script or HTML via the sub_group parameter, a different vulnerability than CVE-2011-4942.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.1% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2012-09-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: geeklog

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

Am I affected?

Timeline

2012-09-09 21:55 UTCPublished CVE record published
2026-06-16 23:36 UTCUpdated Record last modified

geeklog geeklog UPGRADE

Affected: <= 1.7.1 · 1.3 · 1.3.5 · 1.3.6 · 1.3.7 · 1.3.8 · 1.3.9 · 1.3.10

Fixed in: newer than 1.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.7.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade geeklog

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2011-5159?

geeklog: upgrade to newer than 1.7.1. Exact commands for each OS are on this page.

Is CVE-2011-5159 being exploited?

CVE-2011-5159 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-2011-5159 affect?

CVE-2011-5159 affects geeklog. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in admin/configuration.php in Geeklog before 1.7.1sr1 allows remote attackers to inject arbitrary web script or HTML via the sub_group parameter, a different vulnerability than CVE-2011-4942.

How urgent is CVE-2011-5159?

Priority 32/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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References

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