CVE-2022-4348Public exploitNetwork attack vector

Browser script execution via mismatched quote escaping

Published Dec 8, 2022 · Updated Apr 15, 2025

Cross-site scripting in the JSON handler in RuoYi RuoYi-Cloud allows remote authenticated users to execute script in a victim's browser. HTMLFilter escapes an attribute's opening quote but not its closing quote, producing malformed JSON that leaves attacker-controlled markup executable. Exploitation requires crafted JSON and victim interaction; the disclosed consequence is browser-side data access or modification, not service interruption.

CVSS severity3.5
Low
EPSS probability0.40%
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 the JSON handler in RuoYi RuoYi-Cloud allows remote authenticated users to execute script in a victim's browser. HTMLFilter escapes an attribute's opening quote but not its closing quote, producing malformed JSON that leaves attacker-controlled markup executable. Exploitation requires crafted JSON and victim interaction; the disclosed consequence is browser-side data access or modification, not service interruption.

The record

CVE
CVE-2022-4348
Published
Dec 8, 2022
Updated
Apr 15, 2025
Vendor
RuoYi
Product
RuoYi-Cloud
Classifications
CWE-707, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 8, 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

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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 privilegesauthenticated

What is affected?

RuoYi · RuoYi-Cloudversion=n/a

Published CVSS scores

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

Weakness, pattern, technique

CWE-707Improper Neutralization
T1059.007JavaScript/JScript

Public exploit references

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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