CVE-2018-19206

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as...

6.1 MediumFix available

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

55.9%Up 55.0 points since Apr 14, 2021

What each source reports

NVD Score used 6.1

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: CVE-2018-19206
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: CVE-2018-19206
Updated: 2026-11-02

EUVDEUVD-2018-10915 No score

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: EUVD-2018-10915
Updated: 2026-11-03

GitHub AdvisoriesGHSA-p9mh-3gv4-mcg7 6.1

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as...

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: GHSA-p9mh-3gv4-mcg7
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: CVE-2018-19206
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-19206 6.1

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: DEBIAN-CVE-2018-19206
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-19206 6.1

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Record: UBUNTU-CVE-2018-19206
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`roundcube` Debian:12	before 1.3.8+dfsg.1-1	1.3.8+dfsg.1-1
`roundcube` Debian:13	before 1.3.8+dfsg.1-1	1.3.8+dfsg.1-1
`roundcube` Debian:14	before 1.3.8+dfsg.1-1	1.3.8+dfsg.1-1
`roundcube` Debian:9	before 1.2.3+dfsg.1-4+deb9u3, plus listed versions 1.2.3+dfsg.1-41.2.3+dfsg.1-4+deb9u11.2.3+dfsg.1-4+deb9u2	1.2.3+dfsg.1-4+deb9u3
`roundcube` Ubuntu:Pro:16.04:LTS	before 1.2~beta+dfsg.1-0ubuntu1+esm7, plus listed versions 1.1.1+dfsg.1-21.1.2+dfsg.1-51.1.3+dfsg.1-11.1.4+dfsg.1-11.2~beta+dfsg.1-0ubuntu1 Show 6 moreShow less 1.2~beta+dfsg.1-0ubuntu1+esm11.2~beta+dfsg.1-0ubuntu1+esm21.2~beta+dfsg.1-0ubuntu1+esm31.2~beta+dfsg.1-0ubuntu1+esm41.2~beta+dfsg.1-0ubuntu1+esm51.2~beta+dfsg.1-0ubuntu1+esm6	1.2~beta+dfsg.1-0ubuntu1+esm7
`roundcube` Ubuntu:Pro:18.04:LTS	before 1.3.6+dfsg.1-1ubuntu0.1~esm7, plus listed versions 1.3.0+dfsg.1-11.3.1+dfsg.1-11.3.3+dfsg.1-11.3.3+dfsg.1-21.3.6+dfsg.1-1 Show 6 moreShow less 1.3.6+dfsg.1-1ubuntu0.1~esm11.3.6+dfsg.1-1ubuntu0.1~esm21.3.6+dfsg.1-1ubuntu0.1~esm31.3.6+dfsg.1-1ubuntu0.1~esm41.3.6+dfsg.1-1ubuntu0.1~esm51.3.6+dfsg.1-1ubuntu0.1~esm6	1.3.6+dfsg.1-1ubuntu0.1~esm7

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-19206 is a medium vulnerability (CVSS 6.1) in Debian Linux, published November 12, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 55.9%, the 99th percentile. Fixed in roundcube 1.3.8+dfsg.1-1.

References

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