CVE-2023-20144Network attack vector

Browser script execution via unvalidated management requests

Published Apr 5, 2023 · Updated Oct 25, 2024

Cross-site scripting in Cisco Small Business RV router firmware allows remote attackers to run scripts through crafted HTTP requests. The web interface stores attacker-controlled request data without sufficient validation and later renders it inside management pages. All releases of the RV016, RV042, RV042G, RV082, RV320, and RV325 are affected; submission requires no authentication, but execution requires a user to visit an affected page and remains within the interface's browser context.

CVSS severity6.1
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Cisco Small Business RV router firmware allows remote attackers to run scripts through crafted HTTP requests. The web interface stores attacker-controlled request data without sufficient validation and later renders it inside management pages. All releases of the RV016, RV042, RV042G, RV082, RV320, and RV325 are affected; submission requires no authentication, but execution requires a user to visit an affected page and remains within the interface's browser context.

The record

CVE
CVE-2023-20144
Published
Apr 5, 2023
Updated
Oct 25, 2024
Vendor
ClamAV
Product
Cisco Small Business RV Series Router Firmware
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Small Business RV Series Router Firmwareversion=n/a

Published CVSS scores

6.1Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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