CVE-2017-7989

CVE-2017-7989 is a medium-severity vulnerability in Joomla Joomla! with a CVSS 3.x base score of 6.5. 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-434.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• CVSS v2: 4.0
• EPSS exploit prediction: 1% (60th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-434
• Affected product: Joomla Joomla!
• Published: 2017-04-25
• Last modified: 2026-06-17

Description

In Joomla! 3.2.0 through 3.6.5 (fixed in 3.7.0), inadequate MIME type checks allowed low-privilege users to upload swf files even if they were explicitly forbidden.

Frequently asked questions

What is CVE-2017-7989?

In Joomla! 3.2.0 through 3.6.5 (fixed in 3.7.0), inadequate MIME type checks allowed low-privilege users to upload swf files even if they were explicitly forbidden.

How severe is CVE-2017-7989?

CVE-2017-7989 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-7989 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7989?

CVE-2017-7989 primarily affects Joomla Joomla!. In total, 57 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-7989?

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

When was CVE-2017-7989 published?

CVE-2017-7989 was published on 2017-04-25 and last updated on 2026-06-17.

References

• http://www.securityfocus.com/bid/98029
• https://developer.joomla.org/security-centre/689-20170407-core-acl-violations

Affected products (57)

• cpe:2.3:a:joomla:joomla\!:3.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.0:alpha:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.1:rc2:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.4:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.5:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.7:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.8:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.4.8:rc:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:beta:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:beta4:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:beta5:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:rc:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:rc3:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.0:rc4:*:*:*:*:*:*
• cpe:2.3:a:joomla:joomla\!:3.5.1:*:*:*:*:*:*:*

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