Is CVE-2017-6927 in the CISA KEV catalog?

No. CVE-2017-6927 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-6927?

CVE-2017-6927 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2017-6927?

CVE-2017-6927 has an EPSS score of 1.70% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-6927?

Upgrade drupal to 8.4.5 or later.

CVE & CISA-KEV Catalog

CVE-2017-6927

MEDIUMEPSS 75th pctl

6.1

CVSS v3

NVD

Description

Drupal 8.4.x versions before 8.4.5 and Drupal 7.x versions before 7.57 has a Drupal.checkPlain() JavaScript function which is used to escape potentially dangerous text before outputting it to HTML (as JavaScript output does not typically go through Twig autoescaping). This function does not correctly handle all methods of injecting malicious HTML, leading to a cross-site scripting vulnerability under certain circumstances. The PHP functions which Drupal provides for HTML escaping are not affected.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

drupalNVD

Affected:>= 8.4.0, < 8.4.5Fixed in:8.4.5CVE-2017-6927derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

1.70%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory1

drupal.org

Third-Party Advisory3

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.