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Servers and applications

CVE-2017-6820

rcube_utils.php in Roundcube before 1.1.8 and 1.2.x before 1.2.4 is susceptible to a cross-site scripting vulnerability via a crafted Cascading Style Sheets (CSS) token sequence within an SVG element.

Severity
Medium 6.1
Published
12 Mar 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.3% in the next 30 daysHigher than 70% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Cross-site scripting (CWE-79)
Attack
Over the network · No login needed · Needs someone to click or open something
Attacker can
Read some data · Change some data
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Sources
NVD

Affected software

SoftwareAffected versions
RoundcubeServers and applications · cpe:a:roundcube:webmail
  • Every version up to 1.1.7
  • Version 1.2.0
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-6820
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-6820