Is CVE-2023-4643 in the CISA KEV catalog?

No. CVE-2023-4643 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-4643?

CVE-2023-4643 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2023-4643?

CVE-2023-4643 has an EPSS score of 0.84% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-4643?

Upgrade enable media replace to 4.1.3 or later.

CVE & CISA-KEV Catalog

CVE-2023-4643

HIGH

8.8

CVSS v3

NVD

Description

The Enable Media Replace WordPress plugin before 4.1.3 unserializes user input via the Remove Background feature, which could allow Author+ users to perform PHP Object Injection when a suitable gadget is present on the blog

How to fix

Remediation Available

enable media replaceNVD

Affected:< 4.1.3Fixed in:4.1.3CVE-2023-4643derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.84%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Exploit1

wpscan.com

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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 2025-04-23.