How severe is CVE-2026-49102?

CVE-2026-49102 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-2026-49102 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-49102?

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

Does CVE-2026-49102 have an EU (EUVD) identifier?

Yes. CVE-2026-49102 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32528.

When was CVE-2026-49102 published?

CVE-2026-49102 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-49102

CVE-2026-49102 is a medium-severity vulnerability 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% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32528
Weakness: CWE-79
Published: 2026-05-27
Last modified: 2026-06-17

Description

Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type (e.g., text/plain).

Frequently asked questions

What is CVE-2026-49102?: Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type (e.g., text/plain).
How severe is CVE-2026-49102?: CVE-2026-49102 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-2026-49102 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-49102?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-49102 have an EU (EUVD) identifier?: Yes. CVE-2026-49102 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32528.
When was CVE-2026-49102 published?: CVE-2026-49102 was published on 2026-05-27 and last updated on 2026-06-17.

References

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