How severe is CVE-2014-9478?

CVE-2014-9478 has a CVSS 2.0 base score of 2.6, rated low severity.

Is CVE-2014-9478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-9478?

CVE-2014-9478 primarily affects Mediawiki. In total, 46 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-9478?

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

When was CVE-2014-9478 published?

CVE-2014-9478 was published on 2015-01-16 and last updated on 2026-06-17.

CVE-2014-9478

CVE-2014-9478 is a low-severity vulnerability in Mediawiki with a CVSS 2.0 base score of 2.6. 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: Low (CVSS 2.0 base score 2.6)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mediawiki
Published: 2015-01-16
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the preview in the ExpandTemplates extension for MediaWiki, when $wgRawHTML is set to true, allows remote attackers to inject arbitrary web script or HTML via the wpInput parameter to the Special:ExpandTemplates page.

Frequently asked questions

What is CVE-2014-9478?: Cross-site scripting (XSS) vulnerability in the preview in the ExpandTemplates extension for MediaWiki, when $wgRawHTML is set to true, allows remote attackers to inject arbitrary web script or HTML via the wpInput parameter to the Special:ExpandTemplates page.
How severe is CVE-2014-9478?: CVE-2014-9478 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2014-9478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-9478?: CVE-2014-9478 primarily affects Mediawiki. In total, 46 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-9478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-9478 published?: CVE-2014-9478 was published on 2015-01-16 and last updated on 2026-06-17.

References

Affected products (46)

cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.6:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.7:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.20.8:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.6:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.7:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.8:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.9:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.10:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.21.11:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.6:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.7:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.8:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.9:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.10:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.11:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.12:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.13:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.22.14:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.23.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.23.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.23.2:*:*:*:*:*:*:*

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