How severe is CVE-2023-0733?

CVE-2023-0733 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-0733 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0733?

CVE-2023-0733 affects Newsletter Popup Project Newsletter Popup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0733?

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

When was CVE-2023-0733 published?

CVE-2023-0733 was published on 2023-05-30 and last updated on 2026-06-17.

CVE-2023-0733

CVE-2023-0733 is a medium-severity vulnerability in Newsletter Popup Project Newsletter Popup with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Newsletter Popup Project Newsletter Popup
Published: 2023-05-30
Last modified: 2026-06-17

Description

The Newsletter Popup WordPress plugin through 1.2 does not sanitise and escape some of its settings, which could allow unauthenticated users to perform Stored Cross-Site Scripting attacks

Frequently asked questions

What is CVE-2023-0733?: The Newsletter Popup WordPress plugin through 1.2 does not sanitise and escape some of its settings, which could allow unauthenticated users to perform Stored Cross-Site Scripting attacks
How severe is CVE-2023-0733?: CVE-2023-0733 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-0733 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0733?: CVE-2023-0733 affects Newsletter Popup Project Newsletter Popup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0733?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0733 published?: CVE-2023-0733 was published on 2023-05-30 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/fed1e184-ff56-44fe-9876-d17c0156447a

Affected products (1)

cpe:2.3:a:newsletter_popup_project:newsletter_popup:*:*:*:*:*:wordpress:*:*

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