How severe is CVE-2017-5215?

CVE-2017-5215 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-5215 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5215?

CVE-2017-5215 affects Codextrous B2j Contact. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-5215?

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-2017-5215 published?

CVE-2017-5215 was published on 2017-05-17 and last updated on 2026-06-17.

CVE-2017-5215

CVE-2017-5215 is a critical-severity vulnerability in Codextrous B2j Contact with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Codextrous B2j Contact
Published: 2017-05-17
Last modified: 2026-06-17

Description

The Codextrous B2J Contact (aka b2j_contact) extension before 2.1.13 for Joomla! allows a rename attack that bypasses a "safe file extension" protection mechanism, leading to remote code execution.

Frequently asked questions

What is CVE-2017-5215?: The Codextrous B2J Contact (aka b2j_contact) extension before 2.1.13 for Joomla! allows a rename attack that bypasses a "safe file extension" protection mechanism, leading to remote code execution.
How severe is CVE-2017-5215?: CVE-2017-5215 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-5215 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5215?: CVE-2017-5215 affects Codextrous B2j Contact. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-5215?: 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-2017-5215 published?: CVE-2017-5215 was published on 2017-05-17 and last updated on 2026-06-17.

References

https://navixia.com/storage/app/media/uploaded-files/CVE/cve-2017-521415.txt

Affected products (1)

cpe:2.3:a:codextrous:b2j_contact:*:*:*:*:*:joomla\!:*:*

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