october/system vulnerabilities

System module for October CMS

Registry
Composer
Latest
1.1.12
License
MIT

25 known advisories

The latest version, 1.1.12, is affected by 10 of them.

Security advisories for october/system

  • LowGHSA-2ff2-mx52-q8wp14 Sept 2026

    October CMS: PHP Object Injection via Backend Widget Session Storage

    Affected
    <3.7.17 · >=4.0.0 <4.2.23
    Fixed in
    3.7.17, 4.2.23
  • LowGHSA-xv9m-fm3w-8w5x14 Sept 2026

    October CMS: Safe Mode Sandbox Bypass via Session Store and Forwarded Builder Calls

    Affected
    <3.7.17 · >=4.0.0 <4.2.23
    Fixed in
    3.7.17, 4.2.23
  • LowGHSA-jvwg-phxx-j3rp21 Apr 2026

    October CMS: Editor Sub-Permission Bypass for Asset and Blueprint File Operations

    Affected
    >=4.0.0 <4.1.16 · <3.7.16
    Fixed in
    3.7.16, 4.1.16
  • LowGHSA-jj38-h5w5-mvpf21 Apr 2026

    October CMS: Reflected XSS via DataTable Form Widget

    Affected
    <3.7.16 · >=4.0.0
    Fixed in
    3.7.16
  • MediumGHSA-3888-q23f-x7qh21 Apr 2026

    October CMS has Safe Mode Bypass via CSS Preprocessor Compilers

    Affected
    <3.7.14 · >=4.0.0 <4.1.10
    Fixed in
    3.7.14, 4.1.10
  • MediumGHSA-j4j5-9x6g-rgxc14 Apr 2026

    October CMS has Stored XSS in Event Log Mail Preview

    Affected
    >=4.0.0 <4.1.10 · <3.7.14
    Fixed in
    3.7.14, 4.1.10
  • MediumGHSA-6qmh-j78v-ffp714 Apr 2026

    October CMS has Stored XSS in Backend Editor Markup Classes

    Affected
    >=4.0.0 <4.1.10 · <3.7.14
    Fixed in
    3.7.14, 4.1.10
  • MediumGHSA-wvpq-h33f-8rp69 Jan 2026

    October CMS Vulnerable to Stored XSS via Branding Styles

    Affected
    <3.7.13 · >=4.0.0 <4.0.12
    Fixed in
    3.7.13, 4.0.12
  • MediumGHSA-gxxc-m74c-f48x9 Jan 2026

    October CMS Vulnerable to Stored XSS via Editor and Branding Styles

    Affected
    <3.7.13 · >=4.0.0 <4.0.12
    Fixed in
    3.7.13, 4.0.12
  • LowGHSA-96hh-8hx5-cpw75 May 2025

    October CMS Allows Unprotected SVG Rename in Media Manager

    Affected
    <3.7.5
    Fixed in
    3.7.5
  • LowGHSA-v2vf-jv88-3fp526 Jun 2024

    October System module has an Open Redirect for Administrator Accounts

    Affected
    >=3.2 <3.5.15
    Fixed in
    3.5.15
  • LowGHSA-rjw8-v7rr-r56326 Jun 2024

    October System module has a Reflected XSS via X-October-Request-Handler Header

    Affected
    >=3.2 <3.5.15
    Fixed in
    3.5.15
  • MediumGHSA-rvx8-p3xp-fj3p29 Nov 2023

    October CMS stored XSS by authenticated backend user with improper configuration

    Affected
    >=3.0.0 <3.5.2
    Fixed in
    3.5.2
  • CriticalGHSA-p8q3-h652-65vx29 Nov 2023

    October CMS safe mode bypass using Twig sandbox escape

    Affected
    >=3.0.0 <3.4.15
    Fixed in
    3.4.15
  • MediumGHSA-q22j-5r3g-9hmh29 Nov 2023

    October CMS safe mode bypass using Page template injection

    Affected
    >=3.0.0 <3.4.15
    Fixed in
    3.4.15
  • HighGHSA-x4q7-m6fp-4v9v13 Oct 2022

    October CMS Safe Mode bypass leads to authenticated Remote Code Execution

    Affected
    >=2.0.0 <2.2.34 · >=3.0.0 <3.0.66
    Fixed in
    2.2.34, 3.0.66
  • HighGHSA-8v7h-cpc2-r8jp13 Jul 2022

    October CMS upload process vulnerable to RCE via Race Condition

    Affected
    <1.0.476 · >=1.1.0 <1.1.12 · >=2.0.0 <2.2.15
    Fixed in
    1.0.476, 1.1.12, 2.2.15
  • MediumGHSA-53m6-44rc-h2q524 Feb 2022

    Missing server signature validation in OctoberCMS

    Affected
    >=1.1.0 <1.1.11 · <1.0.475
    Fixed in
    1.0.475, 1.1.11
  • HighGHSA-79jw-2f46-wv2223 Feb 2022

    Authenticated remote code execution in October CMS

    Affected
    <1.0.474 · >=1.1.0 <1.1.10 · >=2.0.0 <2.1.27
    Fixed in
    1.0.474, 1.1.10, 2.1.27
  • HighGHSA-5hfj-r725-wpc414 Jan 2022

    october/system arbitrary code execution

    Affected
    >=1.1.0 <1.1.6 · <1.0.473
    Fixed in
    1.0.473, 1.1.6
  • HighGHSA-wv23-pfj7-2mjj14 Jan 2022

    October/System authenticated file write leads to remote code execution

    Affected
    >=1.1.0 <1.1.6 · <1.0.473
    Fixed in
    1.0.473, 1.1.6
  • HighGHSA-6gjf-7w99-j7x76 Oct 2021

    Deleted Admin Can Sign In to Admin Interface

    Affected
    >=2.1.0 <2.1.12
    Fixed in
    2.1.12
  • HighGHSA-h76r-vgf3-j6w530 Aug 2021

    October CMS auth bypass and account takeover

    Affected
    <1.0.472 · >=1.1.1 <1.1.5
    Fixed in
    1.0.472, 1.1.5
  • HighGHSA-mxr5-mc97-63rc30 Aug 2021

    Account Takeover in Octobercms

    Affected
    <1.0.472 · >=1.1.1 <1.1.5
    Fixed in
    1.0.472, 1.1.5
  • MediumGHSA-v73w-r9xg-7cr95 Jun 2020

    Use of insecure jQuery version in OctoberCMS

    Affected
    >=1.0.319 <1.0.466
    Fixed in
    1.0.466

Which of your client projects still run an old october/system?

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Other Composer packages

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily. Package details from the Composer registry.