How severe is CVE-2024-56256?

CVE-2024-56256 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-2024-56256 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-56256?

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

Does CVE-2024-56256 have an EU (EUVD) identifier?

Yes. CVE-2024-56256 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53054.

When was CVE-2024-56256 published?

CVE-2024-56256 was published on 2024-12-31 and last updated on 2026-06-17.

CVE-2024-56256

CVE-2024-56256 is a medium-severity vulnerability 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% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-53054
Weakness: CWE-79
Published: 2024-12-31
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Andy Fragen Embed PDF Viewer embed-pdf-viewer.This issue affects Embed PDF Viewer: from n/a through <= 2.3.1.

Frequently asked questions

What is CVE-2024-56256?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Andy Fragen Embed PDF Viewer embed-pdf-viewer.This issue affects Embed PDF Viewer: from n/a through <= 2.3.1.
How severe is CVE-2024-56256?: CVE-2024-56256 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-2024-56256 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-56256?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-56256 have an EU (EUVD) identifier?: Yes. CVE-2024-56256 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53054.
When was CVE-2024-56256 published?: CVE-2024-56256 was published on 2024-12-31 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/embed-pdf-viewer/vulnerability/wordpress-embed-pdf-viewer-plugin-2-3-1-cross-site-scripting-xss-vulnerability?_s_id=cve

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