PT-2021-17180 · Roundcube+1 · Roundcube+1

Mateusz Szymaniec · Published 2021-02-09 · Updated 2024-03-06 · CVE-2021-26925

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Roundcube versions prior to 1.4.11

Description: The issue allows for an XSS attack through crafted Cascading Style Sheets (CSS) token sequences during the rendering of HTML email. This can occur when an attacker sends a specially designed email that exploits this weakness.

Recommendations: For versions prior to 1.4.11, update to version 1.4.11 or later to resolve the issue. As a temporary workaround, consider restricting the rendering of HTML emails or disabling the use of CSS in emails until a patch is applied. Avoid using potentially vulnerable CSS token sequences in email templates until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2021-1239

BIT-ROUNDCUBE-2021-26925

CVE-2021-26925

MGASA-2021-0130

Affected Products

Alt Linux

Roundcube

References · 17

• https://github.com/roundcube/roundcubemail/commit/9dc276d5f26042db02754fa1bac6fbd683c6d596 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-26925 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5QPAMYM2DQODSCQIAVNFJR2ETG7WMJOD · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-26925 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q752JPOHTR6H72FK3EIPJZ5O24Z7RGLM · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-26925 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-26925 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-26925 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26925 · Security Note
• https://osv.dev/vulnerability/BIT-roundcube-2021-26925 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2021-0130 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0130.html · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-26925 · Vendor Advisory
• https://t.me/cvenotify/9637 · Telegram Post
• https://bugs.mageia.org/show_bug.cgi?id=28387 · Note