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Fencer Vulns
medium 5.3

CVE-2023-2255 json

Remote documents loaded without prompt via IFrame

published 2023-05-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33761

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Patch / fix

  • The Document Foundation LibreOffice 7.4.7, 7.5.3
  • libreoffice Debian 14, Debian 13, Debian 12 4:7.4.5-3

debian advisories DEBIAN-CVE-2023-2255

  • libreoffice Ubuntu 20.04 LTS 1:6.4.7-0ubuntu0.20.04.8
  • libreoffice Ubuntu 22.04 LTS 1:7.3.7-0ubuntu0.22.04.3

ubuntu advisories UBUNTU-CVE-2023-2255

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libreoffice RHEL 8 1:6.4.7.2-15.el8
  • autocorr-af RHEL 8 1:6.4.7.2-15.el8
  • autocorr-bg RHEL 8 1:6.4.7.2-15.el8
  • autocorr-ca RHEL 8 1:6.4.7.2-15.el8
  • autocorr-cs RHEL 8 1:6.4.7.2-15.el8
  • autocorr-da RHEL 8 1:6.4.7.2-15.el8
  • autocorr-de RHEL 8 1:6.4.7.2-15.el8
  • autocorr-en RHEL 8 1:6.4.7.2-15.el8

red hat advisories RHSA-2023:6933RHSA-2023:6508

  • atk SLES 12 SP5, SLES 12 SP4-ESPOS, SLES 12 SP2-BCL +6 more 2.28.1-6.5.23
  • fixmath SLE Workstation Extension 12 SP5 2022.07.20-8.3.48
  • libmwaw SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 0.3.21-7.24.14
  • xmlsec1 SLES 12 SP5, SLES 12 SP4-ESPOS, SLE Software Development Kit 12 SP5 +5 more 1.2.37-8.6.21
  • dragonbox SLE Workstation Extension 12 SP5 1.1.3-8.3.48
  • libreoffice SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 7.5.4.1-48.44.2
  • xmlsec1 SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP5, SLE Module for Package Hub 15 SP4 +8 more 1.2.37-150400.14.3.4
  • libreoffice SLE Workstation Extension 15 SP5, SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP5 +3 more 7.5.4.1-150400.17.12.4

suse advisories SUSE-SU-2024:0075-1SUSE-FU-2023:3696-1SUSE-FU-2023:3413-1

  • libreoffice AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-af AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-bg AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-ca AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-cs AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-da AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-de AlmaLinux 8 1:6.4.7.2-15.el8.alma
  • autocorr-en AlmaLinux 8 1:6.4.7.2-15.el8.alma

almalinux advisories ALSA-2023:6933ALSA-2023:6508

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-2255 updated cvss 5.3

libreoffice: Remote documents loaded without prompt via IFrame

  • Red Hat Enterprise Linux 6 autocorr-af, autocorr-bg, autocorr-ca, autocorr-cs, autocorr-da, autocorr-de, +60 more Red Hat Enterprise Linux 7 autocorr-af, autocorr-bg, autocorr-ca, autocorr-cs, autocorr-da, autocorr-de, +105 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 autocorr-af, autocorr-bg, autocorr-ca, autocorr-cs, autocorr-da, autocorr-de, +101 more
    affected: no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) libreoffice-sdk 6.4.7.2-15.el8
    fixed: vendor fix RHSA-2023:6933
  • Red Hat CodeReady Linux Builder (v. 9) libreoffice-sdk 7.1.8.1-11.el9
    fixed: vendor fix RHSA-2023:6508
  • Red Hat Enterprise Linux AppStream (v. 8) autocorr-af 6.4.7.2-15.el8, autocorr-bg 6.4.7.2-15.el8, autocorr-ca 6.4.7.2-15.el8, autocorr-cs 6.4.7.2-15.el8, autocorr-da 6.4.7.2-15.el8, autocorr-de 6.4.7.2-15.el8, +95 more
    fixed: vendor fix RHSA-2023:6933
  • Red Hat Enterprise Linux AppStream (v. 9) autocorr-af 7.1.8.1-11.el9, autocorr-bg 7.1.8.1-11.el9, autocorr-ca 7.1.8.1-11.el9, autocorr-cs 7.1.8.1-11.el9, autocorr-da 7.1.8.1-11.el9, autocorr-de 7.1.8.1-11.el9, +100 more
    fixed: vendor fix RHSA-2023:6508
  • Red Hat Enterprise Linux 8 autocorr-af, autocorr-bg, autocorr-ca, autocorr-cs, autocorr-da, autocorr-de, +98 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.23% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • The Document Foundation LibreOffice

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.