How severe is CVE-2023-0453?

CVE-2023-0453 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-0453 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0453?

CVE-2023-0453 affects Apusthemes Wp Private Messaging. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0453?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0453 published?

CVE-2023-0453 was published on 2023-02-21 and last updated on 2026-06-17.

CVE-2023-0453

CVE-2023-0453 is a medium-severity vulnerability in Apusthemes Wp Private Messaging with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apusthemes Wp Private Messaging
Published: 2023-02-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-0453?: 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 severe is CVE-2023-0453?: CVE-2023-0453 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-0453 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0453?: CVE-2023-0453 affects Apusthemes Wp Private Messaging. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0453?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0453 published?: CVE-2023-0453 was published on 2023-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apusthemes:wp_private_messaging:*:*:*:*:*:wordpress:*:*