Description
HestiaCP before 1.9.5 contains a stored cross-site scripting vulnerability that allows authenticated low-privilege users to inject arbitrary HTML by creating a DNS record with a double-quote followed by a script payload in the value field. The application fails to apply htmlspecialchars() encoding to the DNS record value field rendered into the data-sort-value HTML attribute in list_dns_rec.php, allowing the payload to execute in the browser of any user who views the DNS record list, including administrators.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| hestiacp | hestiacp | < 1.9.5 |
References
- https://github.com/hestiacp/hestiacp/commit/07dda18ef0087ea981ff84d4d5757774cf2124b0Patch
- https://github.com/hestiacp/hestiacp/pull/5196Issue Tracking, Patch
- https://github.com/hestiacp/hestiacp/releases/tag/1.9.5Release Notes
- https://www.vulncheck.com/advisories/hestiacp-stored-xss-via-dns-record-management-interfaceThird Party Advisory
Timeline
- Published
- Jul 10, 2026
- Last modified
- Sep 29, 2026
- NVD status
- Analyzed