6.5
MEDIUM CVSS 3.1
CVE-2026-48846
Roundcube Webmail CSS Injection Vulnerability
Description

In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, the remote image blocking feature can be bypassed via a crafted CSS var() value in an e-mail message, which may lead to information disclosure or access-control bypass.

INFO

Published Date :

May 25, 2026, 7:21 p.m.

Last Modified :

May 25, 2026, 7:21 p.m.

Remotely Exploit :

Yes !

Source :

mitre
Affected Products

The following products are affected by CVE-2026-48846 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 8254265b-2729-46b6-b9e3-3dfca2d5bfca
Solution
Update Roundcube Webmail to a patched version to fix remote image blocking bypass.
  • Update Roundcube Webmail to version 1.6.16 or later.
  • Update Roundcube Webmail to version 1.7.1 or later.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-48846 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.