How severe is CVE-2026-25117?

CVE-2026-25117 has a CVSS 4.0 base score of 8.3, rated high severity.

Is CVE-2026-25117 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-25117?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-25117 have an EU (EUVD) identifier?

Yes. CVE-2026-25117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4941.

When was CVE-2026-25117 published?

CVE-2026-25117 was published on 2026-01-29 and last updated on 2026-06-17.

CVE-2026-25117

CVE-2026-25117 is a high-severity vulnerability with a CVSS 4.0 base score of 8.3. 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-20.

Key facts

Severity: High (CVSS 4.0 base score 8.3)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4941
Weakness: CWE-20
Published: 2026-01-29
Last modified: 2026-06-17

Description

pwn.college DOJO is an education platform for learning cybersecurity. Prior to commit e33da14449a5abcff507e554f66e2141d6683b0a, missing sandboxing on `/workspace/*` routes allows challenge authors to inject arbitrary javascript which runs on the same origin as `http[:]//dojo[.]website`. This is a sandbox escape leading to arbitrary javascript execution as the dojo's origin. A challenge author can craft a page that executes any dangerous actions that the user could. Version e33da14449a5abcff507e554f66e2141d6683b0a patches the issue.

Frequently asked questions

What is CVE-2026-25117?: pwn.college DOJO is an education platform for learning cybersecurity. Prior to commit e33da14449a5abcff507e554f66e2141d6683b0a, missing sandboxing on `/workspace/*` routes allows challenge authors to inject arbitrary javascript which runs on the same origin as `http[:]//dojo[.]website`. This is a sandbox escape leading to arbitrary javascript execution as the dojo's origin. A challenge author can craft a page that executes any dangerous actions that the user could. Version e33da14449a5abcff507e554f66e2141d6683b0a patches the issue.
How severe is CVE-2026-25117?: CVE-2026-25117 has a CVSS 4.0 base score of 8.3, rated high severity.
Is CVE-2026-25117 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-25117?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-25117 have an EU (EUVD) identifier?: Yes. CVE-2026-25117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4941.
When was CVE-2026-25117 published?: CVE-2026-25117 was published on 2026-01-29 and last updated on 2026-06-17.

References

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