ACTIVELY EXPLOITED
CVE-2023-5631: Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
| Vendor | Roundcube |
|---|---|
| Product | Webmail |
| Actively exploited | Yes |
| Added to CISA KEV | 26 Oct 2023 |
| CISA federal deadline | 16 Nov 2023 |
| Weakness (CWE) | CWE-79 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Roundcube Webmail contains a persistent cross-site scripting (XSS) vulnerability that allows a remote attacker to run malicious JavaScript code.
SOURCES
Other Roundcube flaws
- CVE-2025-68461: RoundCube Webmail Cross-site Scripting Vulnerability
- CVE-2025-49113: RoundCube Webmail Deserialization of Untrusted Data Vulnerability
- CVE-2024-42009: RoundCube Webmail Cross-Site Scripting Vulnerability
- CVE-2024-37383: RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability
- CVE-2020-13965: Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.