Perfex CRM Parameter Clients.php cross site scripting

published 2024-09-15 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49440

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits: 0; none known

A vulnerability was found in Perfex CRM 3.1.6. It has been declared as problematic. This vulnerability affects unknown code of the file application/controllers/Clients.php of the component Parameter Handler. The manipulation of the argument message leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-09-16)

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

bytium.com https://bytium.com/stored-cross-site-scripting-xss-vulnerability-in-perfex-crm/ referenced PoC, tagged "exploit" by a source, unverified
vuldb.com https://vuldb.com/?submit.408014 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	3.0	3.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

Perfex CRM
perfexcrm perfex_crm

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

bytium.com /stored-cross-site-scripting-xss-vulnerability-in-perfex-crm/
exploit, mitigation, third-party-advisory
vuldb.com /?submit.408014
third-party-advisory, exploit, vdb-entry
vuldb.com /?id.277504
vdb-entry, technical-description, permissions-required, third-party-advisory
vuldb.com /?ctiid.277504
signature, permissions-required, third-party-advisory, vdb-entry

Sources

CVE List CVE-2024-8867
NVD CVE-2024-8867

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary