How severe is CVE-2013-6453?

CVE-2013-6453 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2013-6453 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6453?

CVE-2013-6453 primarily affects Mediawiki. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6453?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-6453 published?

CVE-2013-6453 was published on 2014-05-12 and last updated on 2026-06-17.

CVE-2013-6453

CVE-2013-6453 is a high-severity vulnerability in Mediawiki with a CVSS 2.0 base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mediawiki
Published: 2014-05-12
Last modified: 2026-06-17

Description

MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 does not properly sanitize SVG files, which allows remote attackers to have unspecified impact via invalid XML.

Frequently asked questions

What is CVE-2013-6453?: MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 does not properly sanitize SVG files, which allows remote attackers to have unspecified impact via invalid XML.
How severe is CVE-2013-6453?: CVE-2013-6453 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2013-6453 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6453?: CVE-2013-6453 primarily affects Mediawiki. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6453?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-6453 published?: CVE-2013-6453 was published on 2014-05-12 and last updated on 2026-06-17.

References

http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html

Affected products (18)

cpe:2.3:a:mediawiki:mediawiki:1.22.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19:beta_1:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19:beta_2:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.5:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.6:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.7:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.19.8:*:*:*:*:*:*:*

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