CVE-2020-24963
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested...
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4.
- Record
CVE-2020-24963- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4.
- Record
CVE-2020-24963- Updated
- 2026-11-02
EUVDEUVD-2020-17663 No score
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4.
- Record
EUVD-2020-17663- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2fmg-qfp6-p727 No score
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested...
An Authenticated Persistent XSS vulnerability was discovered in the Best Support System, tested version v3.0.4.
- Record
GHSA-2fmg-qfp6-p727- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Best Support System 3.0.4 - 'ticket_body' Persistent XSS (Authenticated) | 2020-11-27 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-24963 is a medium vulnerability (CVSS 5.4) in Appsbd Best Support System, published September 4, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.85%, the 79th percentile. No source names a fixed version.
References
medium.com/%40ex.mi/php-best-support-system-v3-0-4-authenticated-persistent-xss-dfe6d4a06f75
ex-mi.ru/exploit/%5B2020-08-23%5D-%5BPHP%5D-best-support-system-v3.0.4.txt
nvd.nist.gov/vuln/detail/CVE-2020-24963
github.com/advisories/GHSA-2fmg-qfp6-p727