Is CVE-2025-14388 in the CISA KEV catalog?

No. CVE-2025-14388 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-14388?

CVE-2025-14388 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2025-14388?

CVE-2025-14388 has an EPSS score of 0.42% (34th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-14388?

No published fix for CVE-2025-14388 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-14388

CRITICAL

9.8

CVSS v3

NVD

Description

The PhastPress plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Read via null byte injection in all versions up to, and including, 3.7. This is due to a discrepancy between the extension validation in `getExtensionForURL()` which operates on URL-decoded paths, and `appendNormalized()` which strips everything after a null byte before constructing the filesystem path. This makes it possible for unauthenticated attackers to read arbitrary files from the webroot, including wp-config.php, by appending a double URL-encoded null byte (%2500) followed by an allowed extension (.txt) to the file path.

CWE-158

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.42%probability of exploitation in 30 days

34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Other references6

Related Vulnerabilities

Other CWE-158 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-47812	Critical	10.0	95%	KEV	Fix
CVE-2009-1537	High	8.8	51%	KEV	-
CVE-2022-20812	Critical	9.0	1.8%	-	Fix
CVE-2020-14500	Critical	10.0	1.7%	-	-
CVE-2020-7928	Medium	6.5	1.4%	-	Fix
CVE-2022-20813	Critical	9.0	1.0%	-	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 2025-12-23.