Home/CVE/cPanel before 82.0.18 allows self-XSS because JSON string escaping is mishandled (SEC-520).
CVE

CVE-2019-20493

cPanel before 82.0.18 allows self-XSS because JSON string escaping is mishandled (SEC-520).

cPanel before 82.0.18 allows self-XSS because JSON string escaping is mishandled (SEC-520).

MEDIUM · CVSS 6.1 EPSS 0.00423
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

3
cpanel>= 77.9999.110 and < 78.0.43
cpanel>= 81.9999.242 and < 82.0.18
cpanel>= 83.9999.115 and < 84.0.10
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Mar 2020 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://documentation.cpanel.net/display/CL/82+Change+LogVendor Advisory
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