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Fencer Vulns
medium 5.4

CVE-2025-3899 json

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists in Certificates page on W…

published 2025-06-10 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-17632

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists in Certificates page on Webserver that could cause an unvalidated data injected by authenticated malicious user leading to modify or read data in a victim’s browser.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-175-03 updated cvss 5.4

Schneider Electric Modicon Controllers (Update A)

  • Schneider Electric Modicon Controllers M241 <5.3.12.51
    affected: vendor fix, mitigation se.com
  • Schneider Electric Modicon Controllers M251 <5.3.12.51
    affected: vendor fix, mitigation se.com
  • Schneider Electric EcoStruxure Automation Expert - Motion 24.1 Modicon Controllers M241 5.3.12.51, Modicon Controllers M251 5.3.12.51
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA 4.0 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/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

Affected products

  • Schneider Electric Modicon Controllers M241/M251

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

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.