CVE-2026-111442
Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 does not sufficiently validate uploaded SVG images to ensure they lack potentially dangerous SVG tags. SVG images can contain clickable links or executable scripting. By uploading a crafted SVG, it is possible to execute scripting in the browser when an SVG image is viewed. This issue is mitigated by the attacker needing to be able to upload SVG images, and that Backdrop embeds all uploaded SVG images within tags, which prevents script from executing. The SVG must be viewed directly by its URL in order to run any embedded scripting.
CVE-2026-111442
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111442
Backdrop
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/backdrop/backdrop",
"vendor": "BackdropCMS",
"product": "Backdrop",
"versions": [
{
"status": "affected",
"version": "1.35.0",
"lessThan": "1.35.2",
"versionType": "semver"
},
{
"status": "affected",
"version": "1.34.0",
"lessThan": "1.34.6",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111442
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #45034 · Revision 1
- Added to Heist Feed
- Publisher date