CVE-2020-16145

Roundcube Webmail before 1.3.15 and 1.4.8 allows stored XSS in HTML messages during message display via a crafted SVG document. This issue has been fixed in 1.4.8 and 1.3.15.

Published: 2020-08-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-16145 is rated Moderate Risk (52.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.94%). EPSS rose +1.24% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-16145

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.70% 1.94% +1.24%
2 2025-03-17 0.11% 0.70% +0.60%
3 2023-03-07 — 0.11% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-16145

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2020-16145

OS Trackers for CVE-2020-16145

vendor priority summary link
debian not yet assigned CVE-2020-16145 not yet assigned priority: Debian including 1 source packages (roundcube), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-16145
ubuntu medium CVE-2020-16145 medium priority: Ubuntu including 1 source packages (roundcube), 13 status rows across 13 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 9, released 3, DNE 1. https://ubuntu.com/security/CVE-2020-16145

Affected software / configurations for CVE-2020-16145

Vendor Product Version Raw CPE
roundcube webmail < 1.3.15 cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
roundcube webmail >= 1.4.0, < 1.4.8 cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

References for CVE-2020-16145

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html Broken Link
https://github.com/roundcube/roundcubemail/commit/a71bf2e8d4a64ff2c83fdabc1e8cb0c045a41ef4 Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/commit/d44ca2308a96576b88d6bf27528964d4fe1a6b8b#diff-d3bb3391c79904494c60ee2ac2f33070 Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.3.15 Third Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.4.8 Release Notes Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DAXK3565NYK4OEZVTW6S5LEVIDQEY2E/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLUQRIBAMEQVBO6GUZECCHJDJIWCYFU/
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