CVE-2024-52809Public exploitNetwork attack vector

Browser script execution via inherited AST properties

Published Nov 29, 2024 · Updated Dec 2, 2024

Cross-site scripting in Intlify Vue I18n 9.3.0 through 9.14.1 and 10.0.0 through 10.0.4 allows remote attackers to execute script in a browser. The AST formatter reads optimized node properties such as static through inherited prototype lookup, so a polluted Object.prototype getter runs during translation. Exploitation requires attacker-controlled prototype pollution plus development-mode or custom locale-message ASTs, and execution occurs when an affected page translates the message.

CVSS severity5.3
Medium
EPSS probability0.67%
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 Intlify Vue I18n 9.3.0 through 9.14.1 and 10.0.0 through 10.0.4 allows remote attackers to execute script in a browser. The AST formatter reads optimized node properties such as static through inherited prototype lookup, so a polluted Object.prototype getter runs during translation. Exploitation requires attacker-controlled prototype pollution plus development-mode or custom locale-message ASTs, and execution occurs when an affected page translates the message.

The record

CVE
CVE-2024-52809
Published
Nov 29, 2024
Updated
Dec 2, 2024
Vendor
Intlify
Product
Vue I18n
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 2, 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=>= 10.0.0, < 10.0.5
  2. Affected versionversion=10.0.0 <10.0.5
  3. Affected versionversion=< 9.14.2
  4. Affected versionversion=9.3.0 <9.14.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Intlify · Vue I18nversion=>= 10.0.0, < 10.0.5; version=10.0.0 <10.0.5; version=< 9.14.2; version=9.3.0 <9.14.2

Published CVSS scores

5.3GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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