XSS vulnerability in bannerconfig endpoint in TimeProvider 4100

published 2024-10-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-40423

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits: 1; Exploit-DB

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Microchip TimeProvider 4100 (banner config modules) allows Cross-Site Scripting (XSS).This issue affects TimeProvider 4100: from 1.0 before 2.4.7.

Patch / fix

fixed in 1

Microchip TimeProvider 4100 2.4.7, 2.5

Timeline

2024-10-04 Published
2025-04-04 First public exploit (EDB-52120)

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-10-04)

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-52120 Microchip TimeProvider 4100 Grandmaster (Banner Config Modules) 2.4.6 - Stored Cross-Site Scripting (XSS) remote, 2025-04-04
gruppotim.it https://www.gruppotim.it/it/footer/red-team.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.7	CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/S:P/AU:Y/R:U/V:D/U:Green
CNA	4.0	7.7	CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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:P/AU:Y/R:U/V:D/RE:X/U:Green
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Microchip TimeProvider 4100

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

gruppotim.it /it/footer/red-team.html
third-party-advisory, exploit
microchip.com /en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timep
vendor-advisory

Sources

CVE List CVE-2024-43687
NVD CVE-2024-43687

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