How severe is CVE-2023-28931?

CVE-2023-28931 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-28931 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28931?

CVE-2023-28931 affects Never5 Post Connector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28931?

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

When was CVE-2023-28931 published?

CVE-2023-28931 was published on 2023-08-08 and last updated on 2026-06-17.

CVE-2023-28931

CVE-2023-28931 is a medium-severity vulnerability in Never5 Post Connector with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Never5 Post Connector
Published: 2023-08-08
Last modified: 2026-06-17

Description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Never5 Post Connector plugin <= 1.0.9 versions.

Frequently asked questions

What is CVE-2023-28931?: Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Never5 Post Connector plugin <= 1.0.9 versions.
How severe is CVE-2023-28931?: CVE-2023-28931 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-28931 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28931?: CVE-2023-28931 affects Never5 Post Connector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28931?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-28931 published?: CVE-2023-28931 was published on 2023-08-08 and last updated on 2026-06-17.

References

https://patchstack.com/database/vulnerability/post-connector/wordpress-post-connector-plugin-1-0-9-cross-site-scripting-xss-vulnerability?_s_id=cve

Affected products (1)

cpe:2.3:a:never5:post_connector:*:*:*:*:*:wordpress:*:*

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