XSS in Schiocco Support Board
CVE-2021-24807
The Support Board WordPress plugin before 3.3.5 allows Authenticated (Agent+) users to perform Cross-Site Scripting attacks by placing a payload in the notes field, when an administrator or any authenticated user go to the chat the XSS will be automatically executed.
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: 0.014 (71.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: +0.000
Affected products
- Schiocco Support Board
- Support Board — versions 3.3.5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/19d101aa-4b60-4db4-a33b-86c826b288b0 (Exploit, Third Party Advisory)
- medium.com/@lijohnjefferson/cve-2021-24807-6bc22af2a444
- github.com/itsjeffersonli/CVE-2021-24807 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-24807?
- CVE-2021-24807 is a medium-severity vulnerability in Schiocco Support Board, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-11-08.
- How severe is CVE-2021-24807?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2021-24807 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.