How severe is CVE-2015-9406?

CVE-2015-9406 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2015-9406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 55% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-9406?

CVE-2015-9406 affects Mtheme-unus Project Mtheme-unus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-9406?

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-2015-9406 published?

CVE-2015-9406 was published on 2019-09-20 and last updated on 2026-06-17.

CVE-2015-9406

CVE-2015-9406 is a high-severity vulnerability in Mtheme-unus Project Mtheme-unus with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 55% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 55% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Mtheme-unus Project Mtheme-unus
Published: 2019-09-20
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the mTheme-Unus theme before 2.3 for WordPress allows an attacker to read arbitrary files via a .. (dot dot) in the files parameter to css/css.php.

Frequently asked questions

What is CVE-2015-9406?: Directory traversal vulnerability in the mTheme-Unus theme before 2.3 for WordPress allows an attacker to read arbitrary files via a .. (dot dot) in the files parameter to css/css.php.
How severe is CVE-2015-9406?: CVE-2015-9406 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2015-9406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 55% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-9406?: CVE-2015-9406 affects Mtheme-unus Project Mtheme-unus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-9406?: 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-2015-9406 published?: CVE-2015-9406 was published on 2019-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mtheme-unus_project:mtheme-unus:*:*:*:*:*:wordpress:*:*

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