How severe is CVE-2026-12863?

CVE-2026-12863 has a CVSS 4.0 base score of 5.1, rated medium severity.

Is CVE-2026-12863 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12863?

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

Does CVE-2026-12863 have an EU (EUVD) identifier?

Yes. CVE-2026-12863 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38221.

When was CVE-2026-12863 published?

CVE-2026-12863 was published on 2026-06-22 and last updated on 2026-06-23.

CVE-2026-12863

CVE-2026-12863 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.1. 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-601.

Key facts

Severity: Medium (CVSS 4.0 base score 5.1)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38221
Weakness: CWE-601
Published: 2026-06-22
Last modified: 2026-06-23

Description

An unvalidated redirect was contained in Venueless' social login functionality and could be exploited for phishing using trusted domains.

Frequently asked questions

What is CVE-2026-12863?: An unvalidated redirect was contained in Venueless' social login functionality and could be exploited for phishing using trusted domains.
How severe is CVE-2026-12863?: CVE-2026-12863 has a CVSS 4.0 base score of 5.1, rated medium severity.
Is CVE-2026-12863 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-12863?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-12863 have an EU (EUVD) identifier?: Yes. CVE-2026-12863 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38221.
When was CVE-2026-12863 published?: CVE-2026-12863 was published on 2026-06-22 and last updated on 2026-06-23.

References

https://github.com/venueless/venueless/security/advisories/GHSA-m87f-7c4r-w4p3

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