CVE-2023-43770
Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Webmail, fix it now.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies must remediate by Mar 4, 2024.
Patch status
Official fix available since
Apply the vendor's update to every affected system. Check the fixed-in versions below where known.
Basis: NVD patch reference
Description
Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| Webmail | Roundcube | < 1.4.14; >= 1.5.0, < 1.5.4; >= 1.6.0, < 1.6.3 | 1.4.14; 1.5.4; 1.6.3 | KEV |
Sources: KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2023-43770 scored CVSS 6.1: Roundcube Webmail, Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
CISA lists this as exploited in the wild. Unpatched Webmail systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
- Patch releasedUpdateKEV
Patch released for CVE-2023-43770: Roundcube Webmail, Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
An official fix is now available for Roundcube Webmail. This vulnerability is being exploited, so apply it promptly.
Basis: NVD patch reference
1 earlier event is available with a subscription. See plans.
Coverage
We have not published a story about this vulnerability yet.