Cisco IMC Web UI Stored XSS via Authenticated Admin
CVE-2026-20090 Published on April 1, 2026
Cisco Integrated Management Controller Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored XSS attack against a user of the interface.
This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
Vulnerability Analysis
CVE-2026-20090 is exploitable with network access, requires user interaction and user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-20090 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-20090
stack.watch emails you whenever new vulnerabilities are published in Cisco Enterprise Nfv Infrastructure Software or Cisco Unified Computing System. Just hit a watch button to start following.
Affected Versions
Cisco Enterprise NFV Infrastructure Software:- Version 4.1.1 is affected.
- Version 3.9.1 is affected.
- Version 3.5.2 is affected.
- Version 3.12.2 is affected.
- Version 3.6.2 is affected.
- Version 3.9.2 is affected.
- Version 3.11.3 is affected.
- Version 3.11.1 is affected.
- Version 3.5.1 is affected.
- Version 3.3.1 is affected.
- Version 3.10.2 is affected.
- Version 3.12.1b is affected.
- Version 3.4.1 is affected.
- Version 3.12.1a is affected.
- Version 3.6.3 is affected.
- Version 3.8.1 is affected.
- Version 3.11.2 is affected.
- Version 3.12.1 is affected.
- Version 3.12.3 is affected.
- Version 3.10.1 is affected.
- Version 3.6.1 is affected.
- Version 3.10.3 is affected.
- Version 3.7.1 is affected.
- Version 4.1.2 is affected.
- Version 4.2.1 is affected.
- Version 4.2.2 is affected.
- Version 4.4.1 is affected.
- Version 4.4.2 is affected.
- Version 4.5.1 is affected.
- Version 4.4.3 is affected.
- Version 4.6.1 is affected.
- Version 4.7.1 is affected.
- Version 4.6.2-FC2 is affected.
- Version 4.6.2-FC3 is affected.
- Version 4.6.2 is affected.
- Version 4.8.1 is affected.
- Version 4.8.2 is affected.
- Version 4.9.1 is affected.
- Version 4.6.3 is affected.
- Version 4.9.2-FC5 is affected.
- Version 4.9.2 is affected.
- Version 4.10.1 is affected.
- Version 4.9.3 is affected.
- Version 4.11.1 is affected.
- Version 4.9.4 is affected.
- Version 4.12.1 is affected.
- Version 4.6.4 is affected.
- Version 4.12.2 is affected.
- Version 4.13.1 is affected.
- Version 4.9.4-ES8 is affected.
- Version 4.9.5 is affected.
- Version 4.12.3 is affected.
- Version 4.6.5-ES1 is affected.
- Version 4.9.4-ES9 is affected.
- Version 4.14.1 is affected.
- Version 4.6.3-FC4 is affected.
- Version 4.9.4-FC3 is affected.
- Version 4.12.4 is affected.
- Version 4.15.1 is affected.
- Version 4.9.6 is affected.
- Version 4.16.1 is affected.
- Version 4.15.2 is affected.
- Version 4.12.5 is affected.
- Version 4.15.3 is affected.
- Version 4.15.4 is affected.
- Version 4.18.1 is affected.
- Version 4.12.6 is affected.
- Version 4.18.2 is affected.
- Version 4.18.2a is affected.
- Version 4.0(2g) is affected.
- Version 3.1(2i) is affected.
- Version 3.1(1d) is affected.
- Version 4.0(4i) is affected.
- Version 4.1(1c) is affected.
- Version 4.0(2c) is affected.
- Version 4.0(1e) is affected.
- Version 4.0(2h) is affected.
- Version 4.0(4h) is affected.
- Version 4.0(1h) is affected.
- Version 4.0(2l) is affected.
- Version 3.1(3g) is affected.
- Version 4.0(1.240) is affected.
- Version 4.0(2f) is affected.
- Version 4.0(1g) is affected.
- Version 4.0(2i) is affected.
- Version 3.1(3i) is affected.
- Version 4.0(4d) is affected.
- Version 4.1(1d) is affected.
- Version 3.1(3c) is affected.
- Version 4.0(4k) is affected.
- Version 3.1(2d) is affected.
- Version 3.1(3a) is affected.
- Version 3.1(3j) is affected.
- Version 4.0(2d) is affected.
- Version 4.1(1f) is affected.
- Version 4.0(4j) is affected.
- Version 4.0(2m) is affected.
- Version 4.0(2k) is affected.
- Version 4.0(1c) is affected.
- Version 4.0(4f) is affected.
- Version 4.0(4c) is affected.
- Version 3.1(3d) is affected.
- Version 3.1(2g) is affected.
- Version 3.1(2c) is affected.
- Version 4.0(1d) is affected.
- Version 3.1(2e) is affected.
- Version 4.0(1a) is affected.
- Version 4.0(1b) is affected.
- Version 3.1(3b) is affected.
- Version 4.0(4b) is affected.
- Version 3.1(2b) is affected.
- Version 4.0(4e) is affected.
- Version 3.1(3h) is affected.
- Version 4.0(4l) is affected.
- Version 4.1(1g) is affected.
- Version 4.1(2a) is affected.
- Version 4.0(2n) is affected.
- Version 4.1(1h) is affected.
- Version 3.1(3k) is affected.
- Version 4.1(2b) is affected.
- Version 4.0(2o) is affected.
- Version 4.0(4m) is affected.
- Version 4.1(2d) is affected.
- Version 4.1(3b) is affected.
- Version 4.0(2p) is affected.
- Version 4.1(2e) is affected.
- Version 4.1(2f) is affected.
- Version 4.0(4n) is affected.
- Version 4.0(2q) is affected.
- Version 4.1(3c) is affected.
- Version 4.0(2r) is affected.
- Version 4.1(3d) is affected.
- Version 4.1(2g) is affected.
- Version 4.1(2h) is affected.
- Version 4.1(3g) is affected.
- Version 4.1(3f) is affected.
- Version 4.1(2j) is affected.
- Version 4.1(2k) is affected.
- Version 4.1(3h) is affected.
- Version 4.2(2a) is affected.
- Version 4.1(3i) is affected.
- Version 4.2(2f) is affected.
- Version 4.2(2g) is affected.
- Version 4.2(3b) is affected.
- Version 4.1(3l) is affected.
- Version 4.2(3d) is affected.
- Version 4.3(1.230097) is affected.
- Version 4.2(1e) is affected.
- Version 4.2(1b) is affected.
- Version 4.2(1j) is affected.
- Version 4.2(1i) is affected.
- Version 4.2(1f) is affected.
- Version 4.2(1a) is affected.
- Version 4.2(1c) is affected.
- Version 4.2(1g) is affected.
- Version 4.3(1.230124) is affected.
- Version 4.1(2l) is affected.
- Version 4.2(3e) is affected.
- Version 4.3(1.230138) is affected.
- Version 4.2(3g) is affected.
- Version 4.3(2.230207) is affected.
- Version 4.2(3h) is affected.
- Version 4.2(3i) is affected.
- Version 4.3(2.230270) is affected.
- Version 4.1(3m) is affected.
- Version 4.1(2m) is affected.
- Version 4.3(2.240002) is affected.
- Version 4.3(3.240022) is affected.
- Version 4.2(3j) is affected.
- Version 4.1(3n) is affected.
- Version 4.3(2.240009) is affected.
- Version 4.3(3.240041) is affected.
- Version 4.2(3k) is affected.
- Version 4.3(3.240043) is affected.
- Version 4.3(4.240142) is affected.
- Version 4.3(2.240037) is affected.
- Version 4.3(2.240053) is affected.
- Version 4.3(4.240152) is affected.
- Version 4.2(3l) is affected.
- Version 4.3(2.240077) is affected.
- Version 4.3(4.242028) is affected.
- Version 4.3(4.241063) is affected.
- Version 4.3(4.242038) is affected.
- Version 4.2(3m) is affected.
- Version 4.3(2.240090) is affected.
- Version 4.3(5.240021) is affected.
- Version 4.3(2.240107) is affected.
- Version 4.3(4.242066) is affected.
- Version 4.2(3n) is affected.
- Version 4.3(5.250001) is affected.
- Version 4.2(3o) is affected.
- Version 4.3(2.250016) is affected.
- Version 4.3(2.250021) is affected.
- Version 4.3(5.250030) is affected.
- Version 4.3(2.250022) is affected.
- Version 4.3(6.250039) is affected.
- Version 4.3(6.250040) is affected.
- Version 4.3(5.250033) is affected.
- Version 4.3(6.250044) is affected.
- Version 4.3(6.250053) is affected.
- Version 4.3(2.250037) is affected.
- Version 4.3(2.250045) is affected.
- Version 4.3(4.252001) is affected.
- Version 4.3(4.252002) is affected.
- Version 6.0(1.250127) is affected.
- Version 4.2(3p) is affected.
- Version 6.0(1.250131) is affected.
- Version 4.3(6.250101) is affected.
- Version 6.0(1.250174) is affected.
- Version 4.3(6.250117) is affected.
- Version 4.3(5.250043) is affected.
- Version 4.3(5.250045) is affected.
- Version 4.3(6.250060) is affected.
- Version 6.0(1.250130) is affected.
- Version 4.3(4.241014) is affected.
- Version 4.3(2.250063) is affected.
- Version 6.0(1.250192) is affected.
- Version 4.3(6.260003) is affected.
- Version 6.0(1.250194) is affected.
- Version 3.2.7 is affected.
- Version 3.2.6 is affected.
- Version 3.2.4 is affected.
- Version 3.2.10 is affected.
- Version 3.2.2 is affected.
- Version 3.2.3 is affected.
- Version 2.4.0 is affected.
- Version 3.2.1 is affected.
- Version 3.2.11.1 is affected.
- Version 3.2.8 is affected.
- Version 3.1.1 is affected.
- Version 3.0.2 is affected.
- Version 2.1.0 is affected.
- Version 2.2.2 is affected.
- Version 3.1.2 is affected.
- Version 3.0.1 is affected.
- Version 2.3.2 is affected.
- Version 2.3.5 is affected.
- Version 2.2.1 is affected.
- Version 3.1.4 is affected.
- Version 2.4.1 is affected.
- Version 2.3.1 is affected.
- Version 3.1.3 is affected.
- Version 2.3.3 is affected.
- Version 2.4.2 is affected.
- Version 3.1.5 is affected.
- Version 3.1.0 is affected.
- Version 2.0.0 is affected.
- Version 3.2.11.3 is affected.
- Version 3.2.11.5 is affected.
- Version 3.2.12.2 is affected.
- Version 3.2.13.6 is affected.
- Version 3.2.14 is affected.
- Version 4.11.1 is affected.
- Version 3.2.15 is affected.
- Version 4.12.1 is affected.
- Version 3.2.15.3 is affected.
- Version 4.12.2 is affected.
- Version 3.2.16.1 is affected.
- Version 4.00 is affected.
- Version 4.15.2 is affected.
- Version 4.02 is affected.
Exploit Probability
EPSS
0.03%
Percentile
9.70%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.