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4.3
MEDIUM CVSS 3.1
CVE-2026-25916
Roundcube Webmail SVG Image Injection Vulnerability
Description

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13, when "Block remote images" is used, does not block SVG feImage.

INFO

Published Date :

Feb. 9, 2026, 9:16 a.m.

Last Modified :

Feb. 9, 2026, 9:16 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2026-25916 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.

ID Vendor Product Action
1 Roundcube webmail
: Total Affected Vendor : 1 | Products : 1
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
CVSS 3.1 MEDIUM [email protected]
Solution
Update Roundcube Webmail to version 1.6.13 or later to fix SVG feImage issues.
  • Update Roundcube Webmail to version 1.6.13 or later.
  • Apply security patches for older versions if available.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-25916.

URL Resource
https://github.com/roundcube/roundcubemail/commit/26d7677
https://news.ycombinator.com/item?id=46937012
https://nullcathedral.com/posts/2026-02-08-roundcube-svg-feimage-remote-image-bypass/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-25916 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-25916 weaknesses.

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-2026-25916 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-25916 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Feb. 09, 2026

    Action Type Old Value New Value
    Added Description Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13, when "Block remote images" is used, does not block SVG feImage.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
    Added CWE CWE-420
    Added Reference https://github.com/roundcube/roundcubemail/commit/26d7677
    Added Reference https://news.ycombinator.com/item?id=46937012
    Added Reference https://nullcathedral.com/posts/2026-02-08-roundcube-svg-feimage-remote-image-bypass/
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.
Vulnerability Scoring Details
Base CVSS Score: 4.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact