CVE-2023-53900

HIGH
Published Dec 16, 2025 Modified Apr 29, 2026 CWE-79

Description

Spip 4.1.10 contains a file upload vulnerability that allows attackers to upload malicious SVG files with embedded external links. Attackers can trick administrators into clicking a crafted SVG logo that redirects to a potentially dangerous URL through improper file upload filtering.

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CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor Product
spip spip

References

Frequently Asked Questions

What is CVE-2023-53900? +
Spip 4.1.10 contains a file upload vulnerability that allows attackers to upload malicious SVG files with embedded external links. Attackers can trick administrators into clicking a crafted SVG logo that redirects to a potentially dangerous URL through improper file upload filtering. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2023-53900? +
CVE-2023-53900 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-53900? +
CVE-2023-53900 affects products from spip, specifically: spip. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-53900? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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