CVE-2022-4520Network attack vector

Browser script execution via unencoded search parameters

Published Dec 15, 2022 · Updated Apr 15, 2025

Cross-site scripting in WSO2 Carbon Registry 4.8.11 and earlier allows remote authenticated users to run script in a user's browser. advancedSearchForm-ajaxprocessor.jsp copies the mediaType, rightOp, leftOp, rightPropertyValue, and leftPropertyValue request parameters into HTML without output encoding. A victim must load the crafted response, after which the script can read or alter data accessible to that page.

CVSS severity3.5
Low
EPSS probability0.65%
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 WSO2 Carbon Registry 4.8.11 and earlier allows remote authenticated users to run script in a user's browser. advancedSearchForm-ajaxprocessor.jsp copies the mediaType, rightOp, leftOp, rightPropertyValue, and leftPropertyValue request parameters into HTML without output encoding. A victim must load the crafted response, after which the script can read or alter data accessible to that page.

The record

CVE
CVE-2022-4520
Published
Dec 15, 2022
Updated
Apr 15, 2025
Vendor
WSO2
Product
WSO2 Carbon Registry
Classifications
CWE-79, CWE-707, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.8.0
  2. Affected versionversion=4.8.1
  3. Affected versionversion=4.8.10
  4. Affected versionversion=4.8.11
  5. Affected versionversion=4.8.2
  6. Affected versionversion=4.8.3
  7. Affected versionversion=4.8.4
  8. Affected versionversion=4.8.5
  9. Affected versionversion=4.8.6
  10. Affected versionversion=4.8.7
  11. Affected versionversion=4.8.8
  12. Affected versionversion=4.8.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WSO2 · WSO2 Carbon Registryversion=4.8.0; version=4.8.1; version=4.8.10; version=4.8.11; version=4.8.2; version=4.8.3; version=4.8.4; version=4.8.5; version=4.8.6; version=4.8.7; version=4.8.8; version=4.8.9

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-707Improper Neutralization
T1189Drive-by Compromise

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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