CVE-2026-114718
Tenable Plugin
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AI Threat Summary
CVE-2026-114718 is a moderate vulnerability with a CVSS score of 4.7 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
Description
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a cross-site scripting vulnerability in the password plugin. Error text returned by a password driver was concatenated into the message presented to the user without HTML escaping, so a backend able to influence that text, such as the DirectAdmin API, could inject script into the Roundcube interface. Upstream fixed this in the commit “Fix XSS issue in handling of password driver error responses”, which escapes the driver message before display.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-114718 vulnerability with a crafted request or payload
Vulnerability exploited to perform unauthorized actions on the target system
Depending on vulnerability type, attacker achieves data access, service disruption, or code execution
MITRE ATT&CK Techniques
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params |
Remediation
Quick Facts
| CVE ID | CVE-2026-114718 |
| CVSS Score | 4.7 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Published | 2026-10-22 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://bugs.debian.org/1151279
- https://github.com/roundcube/roundcubemail/commit/16bbca70b6…
- https://github.com/roundcube/roundcubemail/commit/94298856ee…
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.…
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.…
- https://roundcube.net/news/2026/10/19/security-updates-1.6.2…