What is CVE-2021-40303?

CVE-2021-40303 is a medium-severity vulnerability in Perfexcrm Perfex_crm, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-11-08.

How severe is CVE-2021-40303?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2021-40303 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Perfexcrm Perfex_crm

CVE-2021-40303

perfex crm 1.10 is vulnerable to Cross Site Scripting (XSS) via /clients/profile.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (39.3th percentile) — read the EPSS interpretation.

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.

Affected products

Perfexcrm Perfex_crm — versions 1.10
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

zecopro/CVE-2021-40303

References

cve@mitre.org (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40303?: CVE-2021-40303 is a medium-severity vulnerability in Perfexcrm Perfex_crm, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-11-08.
How severe is CVE-2021-40303?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-40303 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.