How severe is CVE-2026-39711?

CVE-2026-39711 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-39711 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-39711?

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

Does CVE-2026-39711 have an EU (EUVD) identifier?

Yes. CVE-2026-39711 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20419.

When was CVE-2026-39711 published?

CVE-2026-39711 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-39711

CVE-2026-39711 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-201.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20419
Weakness: CWE-201
Published: 2026-04-08
Last modified: 2026-06-17

Description

Insertion of Sensitive Information Into Sent Data vulnerability in stmcan RT-Theme 18 | Extensions rt18-extensions allows Retrieve Embedded Sensitive Data.This issue affects RT-Theme 18 | Extensions: from n/a through <= 2.5.

Frequently asked questions

What is CVE-2026-39711?: Insertion of Sensitive Information Into Sent Data vulnerability in stmcan RT-Theme 18 | Extensions rt18-extensions allows Retrieve Embedded Sensitive Data.This issue affects RT-Theme 18 | Extensions: from n/a through <= 2.5.
How severe is CVE-2026-39711?: CVE-2026-39711 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-39711 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-39711?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39711 have an EU (EUVD) identifier?: Yes. CVE-2026-39711 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20419.
When was CVE-2026-39711 published?: CVE-2026-39711 was published on 2026-04-08 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/rt18-extensions/vulnerability/wordpress-rt-theme-18-extensions-plugin-2-5-sensitive-data-exposure-vulnerability?_s_id=cve

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