CVE-2020-13965mediumunder attackCWE-80

CVE-2020-13965

Published · Updated

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85Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 6.3epss 77%
from disclosure to weapon1404 days
Published on NVDJun 9
1st PoC+1404d
CISA KEV+1478d
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Not affected
1 product — because the vulnerable code is not present in the product
red_hat_products
Action required by CISAfederal deadline: 2024-07-17

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

In short

Roundcube Webmail allowed attackers to inject malicious scripts through XML file previews. An attacker could send a specially crafted XML attachment that executes code in a victim's browser when previewed.

Technical detail

XSS vulnerability in Roundcube Webmail versions before 1.3.12 and 1.4.5 exists in the attachment preview functionality, where text/xml MIME type was permitted for preview rendering without proper sanitization. Attack vector is email-based; attacker crafts malicious XML with embedded scripts and sends as attachment; victim previews attachment in Roundcube, triggering script execution in their session context.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Affected products
n/a · n/a
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