Cross-site Scripting via uploaded SVG
In Sulu v2.0.0 through v2.6.4 are vulnerable against XSS whereas a low privileged user with an access to the “Media” section can upload an SVG file with a malicious payload. Once uploaded and accessed, the malicious javascript will be executed on the victims’ (other users including admins) browsers.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | sulu/sulu | >= 2.0.0-RC1, < 2.5.21, >= 2.6.0-RC1, < 2.6.5 | 2.5.21, 2.6.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
sulu/sulu- Disclosed
- 03.10.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-255w-87rh-rg44 - CC BY 4.0
Vulnerability history: sulu/sulu
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 18
- First → latest
- 08.2020 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 14
- Low 2
Disclosures per year
- 2020: 1
- 2021: 4
- 2022: 0
- 2023: 1
- 2024: 4
- 2025: 1
- 2026: 7
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