CVE Catalog

CVE-2021-31721

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.89%

55th percentile - higher than 55% of all known CVEs

Summary

An XSS vulnerability in Chevereto before version 3.17.1 allows an attacker to inject malicious script via the image title during file upload.

Risk Assessment

An attacker can steal user sessions, redirect users to malicious sites, or perform other unauthorized actions in the victim's browser context.

Recommendation

Immediately update Chevereto to version 3.17.1 or later, which includes a fix for the XSS vulnerability.

Original NVD description (English source)

Chevereto before 3.17.1 allows Cross Site Scripting (XSS) via an image title at the image upload stage.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS