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CVE-2026-1900

Link Whisper Free < 0.9.1 - Unauthenticated Settings and User Meta Update

Description

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

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.

Show the exploits1

References tagged exploit1 reference

Timeline

  1. ID reserved

    By WPScan

  2. · 2 months later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-1900, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVDNVD · Analyzed3.1Medium6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.19% · top 91% of all CVEs (10 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Affected products

References

1

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2026-1900 badge
[![CVE-2026-1900](https://cveledger.app/badge/CVE-2026-1900.svg)](https://cveledger.app/cve/CVE-2026-1900)

Record last updated .