How severe is CVE-2026-54843?

CVE-2026-54843 has a CVSS 3.x base score of 9.3, 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 none, and availability low.

Is CVE-2026-54843 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-54843?

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-2026-54843 have an EU (EUVD) identifier?

Yes. CVE-2026-54843 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39370.

When was CVE-2026-54843 published?

CVE-2026-54843 was published on 2026-06-25.

CVE-2026-54843

CVE-2026-54843 is a critical-severity vulnerability with a CVSS 3.x base score of 9.3. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.3)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39370
Weakness: CWE-89
Published: 2026-06-25
Last modified: 2026-06-25

Description

Unauthenticated SQL Injection in MDTF <= 1.3.7 versions.

Frequently asked questions

What is CVE-2026-54843?: Unauthenticated SQL Injection in MDTF <= 1.3.7 versions.
How severe is CVE-2026-54843?: CVE-2026-54843 has a CVSS 3.x base score of 9.3, 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 none, and availability low.
Is CVE-2026-54843 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-54843?: 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-2026-54843 have an EU (EUVD) identifier?: Yes. CVE-2026-54843 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39370.
When was CVE-2026-54843 published?: CVE-2026-54843 was published on 2026-06-25.

References

https://patchstack.com/database/wordpress/plugin/wp-meta-data-filter-and-taxonomy-filter/vulnerability/wordpress-mdtf-plugin-1-3-7-sql-injection-vulnerability?_s_id=cve

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