Cisco Catalyst SD-WAN Manager Reflected HTML Injection Vulnerability

published 2025-05-07 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-13885

cvss: 4.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

A vulnerability in the web interface of Cisco Catalyst SD-WAN Manager, formerly Cisco SD-WAN vManage, could allow an unauthenticated, remote attacker to inject HTML into the browser of an authenticated user.

This vulnerability is due to improper sanitization of input to the web interface. An attacker could exploit this vulnerability by convincing an authenticated user to click a malicious link. A successful exploit could allow the attacker to inject HTML into the browser of an authenticated Cisco Catalyst SD-WAN Manager user.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-05-07)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.7	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

Cisco Cisco Catalyst SD-WAN Manager

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

sec.cloudapps.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-html-inj-GxVtK6zj
vendor-advisory

Sources

CVE List CVE-2025-20216
NVD CVE-2025-20216

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Summary