How severe is CVE-2026-48881?

CVE-2026-48881 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-48881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48881?

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

Does CVE-2026-48881 have an EU (EUVD) identifier?

Yes. CVE-2026-48881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36856.

When was CVE-2026-48881 published?

CVE-2026-48881 was published on 2026-06-15 and last updated on 2026-06-17.

CVE-2026-48881

CVE-2026-48881 is a critical-severity vulnerability with a CVSS 3.x base score of 9.1. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36856
Weakness: CWE-862
Published: 2026-06-15
Last modified: 2026-06-17

Description

Unauthenticated Broken Access Control in TrueBooker <= 1.1.9 versions.

Frequently asked questions

What is CVE-2026-48881?: Unauthenticated Broken Access Control in TrueBooker <= 1.1.9 versions.
How severe is CVE-2026-48881?: CVE-2026-48881 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-48881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-48881?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-48881 have an EU (EUVD) identifier?: Yes. CVE-2026-48881 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36856.
When was CVE-2026-48881 published?: CVE-2026-48881 was published on 2026-06-15 and last updated on 2026-06-17.

References

https://patchstack.com/database/wordpress/plugin/truebooker-appointment-booking/vulnerability/wordpress-truebooker-plugin-1-1-9-broken-access-control-vulnerability?_s_id=cve

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