How severe is CVE-2017-1000148?

CVE-2017-1000148 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-1000148 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-1000148?

CVE-2017-1000148 primarily affects Mahara. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-1000148?

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-2017-1000148 published?

CVE-2017-1000148 was published on 2017-11-03 and last updated on 2026-06-17.

CVE-2017-1000148

CVE-2017-1000148 is a high-severity vulnerability in Mahara with a CVSS 3.x base score of 8.8. 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-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Mahara
Published: 2017-11-03
Last modified: 2026-06-17

Description

Mahara 15.04 before 15.04.8 and 15.10 before 15.10.4 and 16.04 before 16.04.2 are vulnerable to PHP code execution as Mahara would pass portions of the XML through the PHP "unserialize()" function when importing a skin from an XML file.

Frequently asked questions

What is CVE-2017-1000148?: Mahara 15.04 before 15.04.8 and 15.10 before 15.10.4 and 16.04 before 16.04.2 are vulnerable to PHP code execution as Mahara would pass portions of the XML through the PHP "unserialize()" function when importing a skin from an XML file.
How severe is CVE-2017-1000148?: CVE-2017-1000148 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-1000148 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-1000148?: CVE-2017-1000148 primarily affects Mahara. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-1000148?: 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-2017-1000148 published?: CVE-2017-1000148 was published on 2017-11-03 and last updated on 2026-06-17.

References

https://bugs.launchpad.net/mahara/+bug/1508684

Affected products (18)

cpe:2.3:a:mahara:mahara:15.04:rc1:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04:rc2:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.0:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.1:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.2:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.3:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.4:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.5:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.6:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.7:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04:rc1:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04:rc2:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04.0:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04.1:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.0:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.1:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.2:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.3:*:*:*:*:*:*:*

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