What’s Vulnerable › Vulnerabilities

CVE-2023-2255: Remote documents loaded without prompt via IFrame

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-25 · updated 2026-06-17
• Weakness: CWE-264

Description

Improper access control in editor components of The Document Foundation LibreOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt. In the affected versions of LibreOffice documents that used "floating frames" linked to external files, would load the contents of those frames without prompting the user for permission to do so. This was inconsistent with the treatment of other linked content in LibreOffice. This issue affects: The Document Foundation LibreOffice 7.4 versions prior to 7.4.7; 7.5 versions prior to 7.5.3.

Affected products

• Debian Linux: 11.0
• The Document Foundation LibreOffice: from 7.4.0 before 7.4.7; from 7.5.0 before 7.5.3 — fixed in 7.4.7, 7.5.3

How to fix

Upgrade to a fixed version: The Document Foundation LibreOffice 7.4.7, 7.5.3. Check the vendor advisory for mitigations.

References

• https://lists.debian.org/debian-lts-announce/2023/08/msg00014.html
• https://security.gentoo.org/glsa/202311-15
• https://www.debian.org/security/2023/dsa-5415
• https://www.libreoffice.org/about-us/security/advisories/CVE-2023-2255
• https://lists.debian.org/debian-lts-announce/2023/08/msg00014.html
• https://security.gentoo.org/glsa/202311-15
• https://www.debian.org/security/2023/dsa-5415
• https://www.libreoffice.org/about-us/security/advisories/CVE-2023-2255

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