How severe is CVE-2026-3007?

CVE-2026-3007 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-2026-3007 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3007?

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

Does CVE-2026-3007 have an EU (EUVD) identifier?

Yes. CVE-2026-3007 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25170.

When was CVE-2026-3007 published?

CVE-2026-3007 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-3007

CVE-2026-3007 is a medium-severity vulnerability 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)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25170
Weakness: CWE-79
Published: 2026-04-23
Last modified: 2026-06-17

Description

Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an attacker to execute arbitrary JavaScript on any user account that has access to Koollab LMS’ courselet feature.

Frequently asked questions

What is CVE-2026-3007?: Successful exploitation of the stored cross-site scripting (XSS) vulnerability could allow an attacker to execute arbitrary JavaScript on any user account that has access to Koollab LMS’ courselet feature.
How severe is CVE-2026-3007?: CVE-2026-3007 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-2026-3007 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3007?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3007 have an EU (EUVD) identifier?: Yes. CVE-2026-3007 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25170.
When was CVE-2026-3007 published?: CVE-2026-3007 was published on 2026-04-23 and last updated on 2026-06-17.

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-042/

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