CVE-2011-4647: Multiple cross-site scripting (XSS) vulnerabilities in the story creation feature in Geeklog 1.8.0 allow remot

Routine

MEDIUM 4.3DOWNGRADE

CVE-2011-4647 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.

Multiple cross-site scripting (XSS) vulnerabilities in the story creation feature in Geeklog 1.8.0 allow remote attackers to inject arbitrary web script or HTML via the (1) code or (2) raw BBcode tags.

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	1.1% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2011-11-30
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

2011-11-30 19:55 UTCPublished CVE record published
2026-06-16 23:35 UTCUpdated Record last modified

geeklog geeklog DOWNGRADE

Affected: 1.8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.8.0 (Debian / Ubuntu)

apt-cache madison geeklog sudo apt install geeklog=<VERSION_BEFORE_1.8.0> sudo apt-mark hold geeklog

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

dnf --showduplicates list geeklog sudo dnf downgrade geeklog-<VERSION_BEFORE_1.8.0> sudo dnf versionlock add geeklog

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-2011-4647?

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

Is CVE-2011-4647 being exploited?

CVE-2011-4647 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-2011-4647 affect?

CVE-2011-4647 affects geeklog. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in the story creation feature in Geeklog 1.8.0 allow remote attackers to inject arbitrary web script or HTML via the (1) code or (2) raw BBcode tags.

How urgent is CVE-2011-4647?

Priority 37/100. Public exploit reference

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References

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