CVE-2021-31721

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

CVSS v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

0.89% chance of exploitation in the next 30 days, 57th percentile

Published

2021-06-30

Updated

2026-07-09

Proof-of-concept exploits (2)

• http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html
• https://www.exploit-db.com/exploits/49859

References

• CVE Record
• NVD entry

Related

• CVE-2021-31703
• CVE-2021-31727
• CVE-2021-31702
• CVE-2021-31728
• CVE-2021-31698
• CVE-2021-31737