Vulnerability Description
An XSS issue was discovered in Backdrop CMS 1.28.x before 1.28.5 and 1.29.x before 1.29.3. It does not sufficiently validate uploaded SVG images to ensure they do not contain potentially dangerous SVG tags. SVG images can contain clickable links and executable scripting, and using 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 <img> tags, which prevents scripting from executing. The SVG must be viewed directly by its URL in order to run any embedded scripting.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Backdropcms | Backdrop Cms | >= 1.28.0, < 1.28.5 |
Related Weaknesses (CWE)
References
- https://backdropcms.org/security/backdrop-sa-core-2025-002Vendor Advisory
FAQ
What is CVE-2025-25063?
CVE-2025-25063 is a vulnerability with a CVSS score of 4.4 (MEDIUM). An XSS issue was discovered in Backdrop CMS 1.28.x before 1.28.5 and 1.29.x before 1.29.3. It does not sufficiently validate uploaded SVG images to ensure they do not contain potentially dangerous SVG...
How severe is CVE-2025-25063?
CVE-2025-25063 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-25063?
Check the references section above for vendor advisories and patch information. Affected products include: Backdropcms Backdrop Cms.