How severe is CVE-2026-48842?

CVE-2026-48842 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-48842 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48842?

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-2026-48842 have an EU (EUVD) identifier?

Yes. CVE-2026-48842 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31719.

When was CVE-2026-48842 published?

CVE-2026-48842 was published on 2026-05-25 and last updated on 2026-06-17.

CVE-2026-48842

CVE-2026-48842 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. 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-89.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31719
Weakness: CWE-89
Published: 2026-05-25
Last modified: 2026-06-17

Description

Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.

Frequently asked questions

What is CVE-2026-48842?: Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.
How severe is CVE-2026-48842?: CVE-2026-48842 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-48842 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-48842?: 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-2026-48842 have an EU (EUVD) identifier?: Yes. CVE-2026-48842 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31719.
When was CVE-2026-48842 published?: CVE-2026-48842 was published on 2026-05-25 and last updated on 2026-06-17.

References

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