vulnerability / NVI-00003524 / Revision 1
Bypass of CMS Safe Mode Security Feature
OSV carries this publisher advisory for wintercms/winter, wintercms/winter. This is an aggregated source copy; consult the original publisher and compare update dates.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
wintercms/winter
source listedECOSYSTEM: introduced 0; fixed 1.0.475
### Impact Authenticated users with permissions to create or modify theme template objects through the backend "CMS" editor can exploit this vulnerability to bypass the `cms.enableSafeMode` security feature if enabled (disables modification of PHP code through the web interface when enabled). This is only an issue for Winter CMS instances that rely on the Safe Mode security feature to prevent privileged users from modifying the PHP code of CMS theme template objects through the web interface. CVSS v3.1 Vector: AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C ### Patches Issue has been fixed in v1.0.475, v1.1.9, & v1.2. ### Workarounds Apply https://github.com/wintercms/storm/commit/03eb5ce3f2a271670574802b914f7bcaf07663c1 manually if unable to upgrade to v1.0.475, v1.1.9, or v1.2.0. ### References See https://github.com/octobercms/october/security/advisories/GHSA-79jw-2f46-wv22/. Credit to David Miller for reporting the issue. ### For more information If you have any questions or comments about this advisory: * Email
wintercms/winter
source listedECOSYSTEM: introduced 1.1.0; fixed 1.1.9
### Impact Authenticated users with permissions to create or modify theme template objects through the backend "CMS" editor can exploit this vulnerability to bypass the `cms.enableSafeMode` security feature if enabled (disables modification of PHP code through the web interface when enabled). This is only an issue for Winter CMS instances that rely on the Safe Mode security feature to prevent privileged users from modifying the PHP code of CMS theme template objects through the web interface. CVSS v3.1 Vector: AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C ### Patches Issue has been fixed in v1.0.475, v1.1.9, & v1.2. ### Workarounds Apply https://github.com/wintercms/storm/commit/03eb5ce3f2a271670574802b914f7bcaf07663c1 manually if unable to upgrade to v1.0.475, v1.1.9, or v1.2.0. ### References See https://github.com/octobercms/october/security/advisories/GHSA-79jw-2f46-wv22/. Credit to David Miller for reporting the issue. ### For more information If you have any questions or comments about this advisory: * Email
03 / Response
What to do next
- vendor patch
The original advisory lists fixed boundaries 1.0.475 for wintercms/winter. Confirm the publisher’s latest guidance.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database via OSV
- vendor patch
The original advisory lists fixed boundaries 1.1.9 for wintercms/winter. Confirm the publisher’s latest guidance.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database via OSV
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-q37h-jhf3-85cj ↗
GitHub Advisory Database via OSV · vendor advisory
Observed . GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.