How severe is CVE-2023-53903?

CVE-2023-53903 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-53903 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-53903?

CVE-2023-53903 affects Websitebaker. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-53903?

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

Does CVE-2023-53903 have an EU (EUVD) identifier?

Yes. CVE-2023-53903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60187.

When was CVE-2023-53903 published?

CVE-2023-53903 was published on 2025-12-16 and last updated on 2026-06-17.

CVE-2023-53903

CVE-2023-53903 is a medium-severity vulnerability in Websitebaker with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-60187
Weakness: CWE-79
Affected product: Websitebaker
Published: 2025-12-16
Last modified: 2026-06-17

Description

WebsiteBaker 2.13.3 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can upload crafted SVG files with script tags that execute when the file is viewed, enabling persistent cross-site scripting attacks.

Frequently asked questions

What is CVE-2023-53903?: WebsiteBaker 2.13.3 contains a stored cross-site scripting vulnerability that allows authenticated users to upload malicious SVG files with embedded JavaScript. Attackers can upload crafted SVG files with script tags that execute when the file is viewed, enabling persistent cross-site scripting attacks.
How severe is CVE-2023-53903?: CVE-2023-53903 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-53903 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-53903?: CVE-2023-53903 affects Websitebaker. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-53903?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-53903 have an EU (EUVD) identifier?: Yes. CVE-2023-53903 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60187.
When was CVE-2023-53903 published?: CVE-2023-53903 was published on 2025-12-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:websitebaker:websitebaker:2.13.3:*:*:*:*:*:*:*

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