CVE-2022-20657 [Medium] | XSS in Prime Infrastructure

A vulnerability in the web-based management interface of Cisco PI and Cisco EPNM could allow an unauthenticated, remote attacker to conduct an XSS attack against a user of the interface of an affected device. This vulnerability exists because the web-based management interface does not properly validate user-supplied 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 context of the affected interface or access sensitive, browser-based information.Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.18%	0.50%	+0.32%
2	2025-12-24	0.09%	0.18%	+0.08%
3	2025-11-21	—	0.09%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.18%

0.50%

+0.32%

2025-12-24

0.09%

0.18%

+0.08%

2025-11-21

—

0.09%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.1	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	2.8	2.7	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.1

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N): Service keeps running; no real outage angle.

2.8

2.7

[email protected]

Affected software / configurations for CVE-2022-20657

References for CVE-2022-20657

URL	Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-pi-epnm-path-trav-zws324yn	Vendor Advisory

URL

CVE-2022-20657 | Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Cross-Site Scripting Vulnerability

Exploit prediction scoring system (EPSS) score for CVE-2022-20657

Common vulnerability scoring system (CVSS) metrics for CVE-2022-20657

Weakness enumeration for CVE-2022-20657

Affected software / configurations for CVE-2022-20657

References for CVE-2022-20657

Vendor	Product	Version	Raw CPE
cisco	prime_infrastructure	2.0.0	cpe:2.3:a:cisco:prime_infrastructure:2.0.0:::::::*
cisco	prime_infrastructure	2.1	cpe:2.3:a:cisco:prime_infrastructure:2.1:::::::*
cisco	prime_infrastructure	2.2	cpe:2.3:a:cisco:prime_infrastructure:2.2:::::::*
cisco	prime_infrastructure	3.0.0	cpe:2.3:a:cisco:prime_infrastructure:3.0.0:::::::*
cisco	prime_infrastructure	3.1.0	cpe:2.3:a:cisco:prime_infrastructure:3.1.0:::::::*
cisco	prime_infrastructure	3.1.5	cpe:2.3:a:cisco:prime_infrastructure:3.1.5:::::::*
cisco	prime_infrastructure	3.2	cpe:2.3:a:cisco:prime_infrastructure:3.2:::::::*
cisco	prime_infrastructure	3.2.0-fips	cpe:2.3:a:cisco:prime_infrastructure:3.2.0-fips:::::::*
cisco	prime_infrastructure	3.3.0	cpe:2.3:a:cisco:prime_infrastructure:3.3.0:::::::*
cisco	prime_infrastructure	3.4.0	cpe:2.3:a:cisco:prime_infrastructure:3.4.0:::::::*
cisco	prime_infrastructure	3.5.0	cpe:2.3:a:cisco:prime_infrastructure:3.5.0:::::::*
cisco	prime_infrastructure	3.6.0	cpe:2.3:a:cisco:prime_infrastructure:3.6.0:::::::*
cisco	prime_infrastructure	3.7.0	cpe:2.3:a:cisco:prime_infrastructure:3.7.0:::::::*
cisco	prime_infrastructure	3.8.0	cpe:2.3:a:cisco:prime_infrastructure:3.8.0:::::::*
cisco	prime_infrastructure	3.9.0	cpe:2.3:a:cisco:prime_infrastructure:3.9.0:::::::*
cisco	evolved_programmable_network_manager	1.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:1.1:::::::*
cisco	evolved_programmable_network_manager	1.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:1.2:::::::*
cisco	evolved_programmable_network_manager	2.0	cpe:2.3:a:cisco:evolved_programmable_network_manager:2.0:::::::*
cisco	evolved_programmable_network_manager	2.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:2.1:::::::*
cisco	evolved_programmable_network_manager	2.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:2.2:::::::*
cisco	evolved_programmable_network_manager	3.0	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.0:::::::*
cisco	evolved_programmable_network_manager	3.0.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.0.1:::::::*
cisco	evolved_programmable_network_manager	3.0.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.0.2:::::::*
cisco	evolved_programmable_network_manager	3.0.3	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.0.3:::::::*
cisco	evolved_programmable_network_manager	3.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.1:::::::*
cisco	evolved_programmable_network_manager	3.1.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.1.1:::::::*
cisco	evolved_programmable_network_manager	3.1.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.1.2:::::::*
cisco	evolved_programmable_network_manager	3.1.3	cpe:2.3:a:cisco:evolved_programmable_network_manager:3.1.3:::::::*
cisco	evolved_programmable_network_manager	4.0	cpe:2.3:a:cisco:evolved_programmable_network_manager:4.0:::::::*
cisco	evolved_programmable_network_manager	4.0.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:4.0.1:::::::*
cisco	evolved_programmable_network_manager	4.0.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:4.0.2:::::::*
cisco	evolved_programmable_network_manager	4.0.3	cpe:2.3:a:cisco:evolved_programmable_network_manager:4.0.3:::::::*
cisco	evolved_programmable_network_manager	4.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:4.1:::::::*
cisco	evolved_programmable_network_manager	4.1.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:4.1.1:::::::*
cisco	evolved_programmable_network_manager	5.0	cpe:2.3:a:cisco:evolved_programmable_network_manager:5.0:::::::*
cisco	evolved_programmable_network_manager	5.0.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:5.0.1:::::::*
cisco	evolved_programmable_network_manager	5.0.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:5.0.2:::::::*
cisco	evolved_programmable_network_manager	5.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:5.1:::::::*
cisco	evolved_programmable_network_manager	5.1.1	cpe:2.3:a:cisco:evolved_programmable_network_manager:5.1.1:::::::*
cisco	evolved_programmable_network_manager	5.1.2	cpe:2.3:a:cisco:evolved_programmable_network_manager:5.1.2:::::::*