How severe is CVE-2025-3900?

CVE-2025-3900 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-2025-3900 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-3900?

CVE-2025-3900 affects Colorbox Project Colorbox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3900?

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

Does CVE-2025-3900 have an EU (EUVD) identifier?

Yes. CVE-2025-3900 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11969.

When was CVE-2025-3900 published?

CVE-2025-3900 was published on 2025-04-23 and last updated on 2026-06-17.

CVE-2025-3900

CVE-2025-3900 is a medium-severity vulnerability in Colorbox Project Colorbox 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. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11969
Weakness: CWE-79
Affected product: Colorbox Project Colorbox
Published: 2025-04-23
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Colorbox allows Cross-Site Scripting (XSS).This issue affects Colorbox: from 0.0.0 before 2.1.3.

Frequently asked questions

What is CVE-2025-3900?: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Colorbox allows Cross-Site Scripting (XSS).This issue affects Colorbox: from 0.0.0 before 2.1.3.
How severe is CVE-2025-3900?: CVE-2025-3900 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-2025-3900 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-3900?: CVE-2025-3900 affects Colorbox Project Colorbox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3900?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3900 have an EU (EUVD) identifier?: Yes. CVE-2025-3900 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11969.
When was CVE-2025-3900 published?: CVE-2025-3900 was published on 2025-04-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:colorbox_project:colorbox:*:-:*:*:*:drupal:*:*

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