CVE-2026-1900 json
Link Whisper Free < 0.9.1 - Unauthenticated Settings and User Meta Update
published 2026-04-07 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-19576
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
The Link Whisper Free WordPress plugin before 0.9.1 has a publicly accessible REST endpoint that allows unauthenticated settings updates.
Patch / fix
- Unknown Link Whisper Free 0.9.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/dc10b627-7981-4c53-bc9d-e87418f3fcfc/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- Unknown Link Whisper Free
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
- Technology feeds
References
-
wpscan.com
/vulnerability/dc10b627-7981-4c53-bc9d-e87418f3fcfc/
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2026-1900
- NVD CVE-2026-1900
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.