How severe is CVE-2012-4873?

CVE-2012-4873 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-4873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4873?

CVE-2012-4873 affects Sir Gnuboard. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-4873?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-4873 published?

CVE-2012-4873 was published on 2012-09-06 and last updated on 2026-06-16.

CVE-2012-4873

CVE-2012-4873 is a medium-severity vulnerability in Sir Gnuboard with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Sir Gnuboard
Published: 2012-09-06
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the file_download function in GNUBoard before 4.34.21 allows remote attackers to inject arbitrary web script or HTML via the filename parameter.

Frequently asked questions

What is CVE-2012-4873?: Cross-site scripting (XSS) vulnerability in the file_download function in GNUBoard before 4.34.21 allows remote attackers to inject arbitrary web script or HTML via the filename parameter.
How severe is CVE-2012-4873?: CVE-2012-4873 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-4873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4873?: CVE-2012-4873 affects Sir Gnuboard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-4873?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4873 published?: CVE-2012-4873 was published on 2012-09-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:sir:gnuboard:*:*:*:*:*:*:*:*

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