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CVE-2023-6426

18
FAUCET Score

CVE-2023-6426 describes a persistent Cross-Site Scripting (XSS) vulnerability in BigProf Online Invoicing System version 2.6. Specifically, insufficient input encoding in the FirstRecord parameter of /invoicing/app/invoices_view.php allows an authenticated attacker to inject and store malicious JavaScript. Rated Medium severity with a CVSS score of 5.4, this vulnerability requires user interaction (UI:R) and low privileges (PR:L) for exploitation, leading to potential client-side compromise (C:L, I:L). The attack complexity is low (AC:L), but the impact is limited to confidentiality and integrity. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public awareness or concern.

Impacted Technologies

VendorProductVersion(s)CPE
2.6CPE matchmatch criteria
cpe:2.3:a:bigprof:online_invoicing_system:2.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 47th percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

incibe.es / en/incibe-cert/notices/aviso/multiple-xss-vulnerabilities-bigprof-products
Third Party Advisory