How severe is CVE-2023-25459?

CVE-2023-25459 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-2023-25459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25459?

CVE-2023-25459 affects Postsnippets Post Snippets. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25459?

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

When was CVE-2023-25459 published?

CVE-2023-25459 was published on 2023-08-08 and last updated on 2026-06-17.

CVE-2023-25459

CVE-2023-25459 is a medium-severity vulnerability in Postsnippets Post Snippets 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% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Postsnippets Post Snippets
Published: 2023-08-08
Last modified: 2026-06-17

Description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Postsnippets Post Snippets plugin <= 4.0.2 versions.

Frequently asked questions

What is CVE-2023-25459?: Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Postsnippets Post Snippets plugin <= 4.0.2 versions.
How severe is CVE-2023-25459?: CVE-2023-25459 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-2023-25459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25459?: CVE-2023-25459 affects Postsnippets Post Snippets. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25459?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-25459 published?: CVE-2023-25459 was published on 2023-08-08 and last updated on 2026-06-17.

References

https://patchstack.com/database/vulnerability/post-snippets/wordpress-post-snippets-custom-wordpress-code-snippets-customizer-plugin-4-0-2-cross-site-scripting-xss-vulnerability?_s_id=cve

Affected products (1)

cpe:2.3:a:postsnippets:post_snippets:*:*:*:*:*:wordpress:*:*

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