UpHeron
All vulnerabilities

Servers and applications

CVE-2023-43770

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 12 Feb 2024.

Severity
Medium 6.1
Published
22 Sept 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.4.14, 1.5.4, 1.6.3
Sources
NVD

Affected software

SoftwareAffected versions
RoundcubeServers and applications · cpe:a:roundcube:webmail
  • Every version before 1.4.14
  • From 1.5.0 before 1.5.4
  • From 1.6.0 before 1.6.3

Known exploited

CISA name
Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
4 Mar 2024
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-43770
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-43770