Is CVE-2018-20149 in the CISA KEV catalog?

No. CVE-2018-20149 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-20149?

CVE-2018-20149 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2018-20149?

CVE-2018-20149 has an EPSS score of 3.44% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-20149?

Upgrade wordpress on debian 11 to 5.0.1+dfsg1-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-20149

MEDIUMEPSS 88th pctl

5.4

CVSS v3

NVD

Description

In WordPress before 4.9.9 and 5.x before 5.0.1, when the Apache HTTP Server is used, authors could upload crafted files that bypass intended MIME type restrictions, leading to XSS, as demonstrated by a .jpg file without JPEG data.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

wordpressDebian

Fixed in:5.0.1+dfsg1-1CVE-2018-20149

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 RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

3.44%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

github.com

Vendor Advisory4

Third-Party Advisory4

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.