How severe is CVE-2015-8358?

CVE-2015-8358 has a CVSS 2.0 base score of 9.0, rated critical severity.

Is CVE-2015-8358 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8358?

CVE-2015-8358 affects Bitrix Mpbuilder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-8358?

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

When was CVE-2015-8358 published?

CVE-2015-8358 was published on 2015-12-16 and last updated on 2026-06-17.

CVE-2015-8358

CVE-2015-8358 is a critical-severity vulnerability in Bitrix Mpbuilder with a CVSS 2.0 base score of 9.0. 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-22.

Key facts

Severity: Critical (CVSS 2.0 base score 9.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Bitrix Mpbuilder
Published: 2015-12-16
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the bitrix.mpbuilder module before 1.0.12 for Bitrix allows remote administrators to include and execute arbitrary local files via a .. (dot dot) in the element name of the "work" array parameter to admin/bitrix.mpbuilder_step2.php.

Frequently asked questions

What is CVE-2015-8358?: Directory traversal vulnerability in the bitrix.mpbuilder module before 1.0.12 for Bitrix allows remote administrators to include and execute arbitrary local files via a .. (dot dot) in the element name of the "work" array parameter to admin/bitrix.mpbuilder_step2.php.
How severe is CVE-2015-8358?: CVE-2015-8358 has a CVSS 2.0 base score of 9.0, rated critical severity.
Is CVE-2015-8358 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8358?: CVE-2015-8358 affects Bitrix Mpbuilder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-8358?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-8358 published?: CVE-2015-8358 was published on 2015-12-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bitrix:mpbuilder:*:*:*:*:*:bitrix:*:*

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