How severe is CVE-2014-2242?

CVE-2014-2242 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-2242 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2242?

CVE-2014-2242 primarily affects Mediawiki. In total, 90 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2242?

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

When was CVE-2014-2242 published?

CVE-2014-2242 was published on 2014-03-02 and last updated on 2026-06-17.

CVE-2014-2242

CVE-2014-2242 is a medium-severity vulnerability in Mediawiki 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% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mediawiki
Published: 2014-03-02
Last modified: 2026-06-17

Description

includes/upload/UploadBase.php in MediaWiki before 1.19.12, 1.20.x and 1.21.x before 1.21.6, and 1.22.x before 1.22.3 does not prevent use of invalid namespaces in SVG files, which allows remote attackers to conduct cross-site scripting (XSS) attacks via an SVG upload, as demonstrated by use of a W3C XHTML namespace in conjunction with an IFRAME element.

Frequently asked questions

What is CVE-2014-2242?: includes/upload/UploadBase.php in MediaWiki before 1.19.12, 1.20.x and 1.21.x before 1.21.6, and 1.22.x before 1.22.3 does not prevent use of invalid namespaces in SVG files, which allows remote attackers to conduct cross-site scripting (XSS) attacks via an SVG upload, as demonstrated by use of a W3C XHTML namespace in conjunction with an IFRAME element.
How severe is CVE-2014-2242?: CVE-2014-2242 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-2242 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2242?: CVE-2014-2242 primarily affects Mediawiki. In total, 90 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2242?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2242 published?: CVE-2014-2242 was published on 2014-03-02 and last updated on 2026-06-17.

References

Affected products (90)

cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.0:rc2:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.10.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.11:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.11.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.11.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.11.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.11.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.12.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.12.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.12.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.12.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.12.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.12.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.13.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.14.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.14.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.14.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.15.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.16.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.16.0:beta1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.16.0:beta2:*:*:*:*:*:*

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