Risk Letters

Exploited vulnerability

CVE-2020-35730

TLP:CLEAR

Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability

Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows an attacker to send a plain text e-mail message with Javascript in a link reference element that is mishandled by linkref_addinindex in rcube_string_replacer.php.

Facts

  • Vendor: Roundcube
  • Product: Roundcube Webmail
  • CVSS: 6.1
  • EPSS (probability of exploitation within 30 days): 32.9 %
  • On CISA's Known Exploited Vulnerabilities list since: 22 June 2023
  • First known exploitation: 22 June 2023
  • CISA's deadline for US federal agencies: 13 July 2023
  • Weakness: CWE-79
  • First seen by Risk Letters: 22 June 2023

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD