CVE-2020-15562
It allows XSS via a crafted HTML e-mail message, as demonstrated by a JavaScript payload in the xmlns (aka XML namespace) attribute of a HEAD element when an SVG element exists.
Does this matter?
Lower severity and a low EPSS score (1.82%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Roundcube Webmail before 1.2.11, 1.3.x before 1.3.14, and 1.4.x before 1.4.7. It allows XSS via a crafted HTML e-mail message, as demonstrated by a JavaScript payload in the xmlns (aka XML namespace) attribute of a HEAD element when an SVG element exists.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.82% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- roundcube/webmail · debian/debian linux
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.htmlBroken Link
- https://github.com/roundcube/roundcubemail/commit/3e8832d029b035e3fcfb4c75839567a9580b4f82Patch, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.2.11Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.14Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.4.7Release Notes, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4720Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.htmlBroken Link
- https://github.com/roundcube/roundcubemail/commit/3e8832d029b035e3fcfb4c75839567a9580b4f82Patch, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.2.11Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.14Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.4.7Release Notes, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4720Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.