CVE-2020-13964 json
An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5.
published 2020-06-09 6 y ago modified 2026-06-17 4 mo ago also BIT-roundcube-2020-13964 , EUVD-2020-6138
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. include/rcmail_output_html.php allows XSS via the username template object.
Patch / fix
- bitnami roundcube 1.3.12, 1.4.5
- roundcube webmail 1.3.12, 1.4.5
- roundcube Debian 14, Debian 13, Debian 12 1.4.5+dfsg.1-1
debian advisories DEBIAN-CVE-2020-13964
- roundcube Ubuntu Pro 16.04 LTS 1.2~beta+dfsg.1-0ubuntu1+esm2
- roundcube Ubuntu Pro 18.04 LTS 1.3.6+dfsg.1-1ubuntu0.1~esm2
- roundcube Ubuntu Pro 20.04 LTS 1.4.3+dfsg.1-1ubuntu0.1~esm1
ubuntu advisories UBUNTU-CVE-2020-13964
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2020-13964 updated cvss 6.1
roundcubemail: XSS via the username template object
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| OSV | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | roundcube | <1.3.12 >=1.4.0, <1.4.5 |
1.3.12 1.4.5 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/roundcube/roundcubemail/commit/37e2bc745723ef6322f0f785aefd0b9313a40f19
patch, web
-
debian.org
/security/2020/dsa-4700
vendor-advisory, third-party-advisory, web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/
vendor-advisory, web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/
vendor-advisory, web
-
roundcube.net
/news/2020/06/02/security-updates-1.4.5-and-1.3.12
vendor-advisory, web
-
github.com
/roundcube/roundcubemail/releases/tag/1.4.5
release-notes, web
-
github.com
/roundcube/roundcubemail/releases/tag/1.3.12
release-notes, web
Sources
- CVE List CVE-2020-13964
- NVD CVE-2020-13964
- OSV BIT-roundcube-2020-13964
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.