How severe is CVE-2018-15747?

CVE-2018-15747 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-2018-15747 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-2018-15747?

CVE-2018-15747 affects Glot Glot-www. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15747?

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-2018-15747 published?

CVE-2018-15747 was published on 2019-06-21 and last updated on 2026-06-17.

CVE-2018-15747

CVE-2018-15747 is a critical-severity vulnerability in Glot Glot-www 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: Glot Glot-www
Published: 2019-06-21
Last modified: 2026-06-17

Description

The default configuration of glot-www through 2018-05-19 allows remote attackers to execute arbitrary code because glot-code-runner supports os.system within a "python" "files" "content" JSON file.

Frequently asked questions

What is CVE-2018-15747?: The default configuration of glot-www through 2018-05-19 allows remote attackers to execute arbitrary code because glot-code-runner supports os.system within a "python" "files" "content" JSON file.
How severe is CVE-2018-15747?: CVE-2018-15747 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-2018-15747 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-2018-15747?: CVE-2018-15747 affects Glot Glot-www. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15747?: 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-2018-15747 published?: CVE-2018-15747 was published on 2019-06-21 and last updated on 2026-06-17.

References

https://github.com/prasmussen/glot-code-runner/issues/15

Affected products (1)

cpe:2.3:a:glot:glot-www:*:*:*:*:*:*:*:*

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