CVE•Published 2026-07-08•Modified 2026-07-10•1 article on news•5 live references•NVD data
CVE-2026-56843
Vulnerability data via NVD (ingested)
CVSS v3.1
9.9
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
26
Exploit Prediction Scoring System · top 74% of all CVEs
Weaknesses (CWE)
Description
Incorrect authorization in the XML-RPC API of WebPros Plesk before 18.0.78.4 allows a low-privileged authenticated customer to look up domains they do not own, because ownership is enforced only for certain lookup filters and schema validation is bypassed for legacy protocol versions. This results in cross-tenant disclosure of other tenants' FTP credentials stored in cleartext, which can be leveraged to execute code as another tenant's system user.
Timeline
Published 2026-07-08
Modified 2026-07-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-56843Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-56843Censys host search filtered to this CVE id.
grep.app
CVE-2026-56843Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-56843GitHub code search for direct mentions.
Google dork
"CVE-2026-56843" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-56843 on GitHub.