XSS in Onyaktech Comments Pro Project
CVE-2021-33483
An issue was discovered in CommentsService.ashx in OnyakTech Comments Pro 3.8. The comment posting functionality allows an attacker to add an XSS payload to the JSON request that will execute when users visit the page with the comment.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Onyaktech Comments Pro Project — versions 3.8
Weakness classification (CWE)
References
- twitter.com/onyaktech (Third Party Advisory)
- burninatorsec.blogspot.com/2021/07/onyaktech-comments-pro-broken.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33483?
- CVE-2021-33483 is a medium-severity vulnerability in Onyaktech Comments Pro Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-09-07.
- How severe is CVE-2021-33483?
- Medium severity. CVSS v3 base score is 5.4 out of 10.