Is CVE-2023-0453 in the CISA KEV catalog?

No. CVE-2023-0453 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-0453?

CVE-2023-0453 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2023-0453?

CVE-2023-0453 has an EPSS score of 0.55% (42th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-0453?

Upgrade wp private messaging to 1.0.6 or later.

CVE & CISA-KEV Catalog

CVE-2023-0453

MEDIUM

4.3

CVSS v3

NVD

Description

The WP Private Message WordPress plugin (bundled with the Superio theme as a required plugin) before 1.0.6 does not ensure that private messages to be accessed belong to the user making the requests. This allowing any authenticated users to access private messages belonging to other users by tampering the ID.

How to fix

Remediation Available

wp private messagingNVD

Affected:< 1.0.6Fixed in:1.0.6CVE-2023-0453derived 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

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.55%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

Exploit1

wpscan.com

Product1

themeforest.net

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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 2025-03-12.