How severe is CVE-2026-1900?

CVE-2026-1900 has a CVSS 3.x base score of 6.5, 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 low, and availability none.

Is CVE-2026-1900 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1900?

CVE-2026-1900 affects Linkwhisper Link Whisper. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1900?

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

Does CVE-2026-1900 have an EU (EUVD) identifier?

Yes. CVE-2026-1900 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19576.

When was CVE-2026-1900 published?

CVE-2026-1900 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-1900

CVE-2026-1900 is a medium-severity vulnerability in Linkwhisper Link Whisper with a CVSS 3.x base score of 6.5. 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-306.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19576
Weakness: CWE-306
Affected product: Linkwhisper Link Whisper
Published: 2026-04-07
Last modified: 2026-06-17

Description

The Link Whisper Free WordPress plugin before 0.9.1 has a publicly accessible REST endpoint that allows unauthenticated settings updates.

Frequently asked questions

What is CVE-2026-1900?: The Link Whisper Free WordPress plugin before 0.9.1 has a publicly accessible REST endpoint that allows unauthenticated settings updates.
How severe is CVE-2026-1900?: CVE-2026-1900 has a CVSS 3.x base score of 6.5, 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 low, and availability none.
Is CVE-2026-1900 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1900?: CVE-2026-1900 affects Linkwhisper Link Whisper. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1900?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1900 have an EU (EUVD) identifier?: Yes. CVE-2026-1900 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19576.
When was CVE-2026-1900 published?: CVE-2026-1900 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/dc10b627-7981-4c53-bc9d-e87418f3fcfc/

Affected products (1)

cpe:2.3:a:linkwhisper:link_whisper:*:*:*:*:free:wordpress:*:*

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