CVE-2021-40303
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
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
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
- Record
CVE-2021-40303- 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 - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
- Record
CVE-2021-40303- 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 - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-27486
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
- Record
EUVD-2021-27486- 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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-36vh-mp6p-rrp2
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.
- Record
GHSA-36vh-mp6p-rrp2- 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 - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | zecopro/CVE-2021-40303 | 2022-11-24 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-40303 is a medium vulnerability (CVSS 5.4) in Perfexcrm Perfex Crm, published November 8, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.64%, the 50th percentile. No source names a fixed version.