How severe is CVE-2017-11612?

CVE-2017-11612 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-11612 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11612?

CVE-2017-11612 primarily affects Joomla Joomla!. In total, 160 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-11612?

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

When was CVE-2017-11612 published?

CVE-2017-11612 was published on 2017-07-26 and last updated on 2026-06-17.

CVE-2017-11612

CVE-2017-11612 is a medium-severity vulnerability in Joomla Joomla! with a CVSS 3.x base score of 6.1. 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 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Joomla Joomla!
Published: 2017-07-26
Last modified: 2026-06-17

Description

In Joomla! before 3.7.4, inadequate filtering of potentially malicious HTML tags leads to XSS vulnerabilities in various components.

Frequently asked questions

What is CVE-2017-11612?: In Joomla! before 3.7.4, inadequate filtering of potentially malicious HTML tags leads to XSS vulnerabilities in various components.
How severe is CVE-2017-11612?: CVE-2017-11612 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-11612 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11612?: CVE-2017-11612 primarily affects Joomla Joomla!. In total, 160 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-11612?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-11612 published?: CVE-2017-11612 was published on 2017-07-26 and last updated on 2026-06-17.

References

Affected products (160)

cpe:2.3:a:joomla:joomla\!:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.4:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.5:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.7:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.8:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.9:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.10:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.11:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.12:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.13:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.14:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.15:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.15:rc:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.16:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.17:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.18:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.19:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.20:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.21:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.22:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.23:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.24:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.25:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.5.26:*:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:alpha:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:alpha2:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta1:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta10:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta11:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta12:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta13:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta14:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta15:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta2:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta3:*:*:*:*:*:*
cpe:2.3:a:joomla:joomla\!:1.6:beta4:*:*:*:*:*:*

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