CVEs / CVE-2020-13965
CVE-2020-13965: Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
- Known exploited in the CISA KEV catalog since 26 Jun 2024
- medium 6.1 CVSS 3.1 (NVD)
- EPSS 76.5% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows a remote attacker to manipulate data via a malicious XML attachment.
Description
An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
| roundcube webmail | before 1.3.12 | 1.3.12 |
| roundcube webmail | from 1.4.0, before 1.4.5 | 1.4.5 |
Exploitation
| In CISA KEV since | 26 Jun 2024 |
|---|---|
| Due date for US federal agencies | 17 Jul 2024 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 6.1 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NScored by NVD |
|---|---|
| Weakness | CWE-79, CWE-80 |
References
- CVE-2020-13965 on NVD
- CVE-2020-13965 in the CISA KEV catalog
- https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 (cited by CISA)
- CVE-2020-13965 on OSV
- https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube Exploit, Third Party Advisory
- https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 Patch, Third Party Advisory
- https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 Patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 Release Notes
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ Mailing List
- https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 Vendor Advisory
- https://www.debian.org/security/2020/dsa-4700 Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-13965 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.