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Fencer Intel
medium 5.3

CVE-2024-52809 json

Cross-site Scripting vulnerability with prototype pollution in vue-i18n

published last yr. modified 4mo ago also EUVD-2024-3455 , GHSA-9r9m-ffp6-9x4v

cvss
5.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

vue-i18n is an internationalization plugin for Vue.js. In affected versions vue-i18n can be passed locale messages to `createI18n` or `useI18n`. When locale message ASTs are generated in development mode there is a possibility of Cross-site Scripting attack. This issue has been addressed in versions 9.14.2, and 10.0.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Patch / fix

  • npm @intlify/core-base 9.14.2, 10.0.5
  • npm vue-i18n 9.14.2, 10.0.5
  • npm @intlify/core 9.14.2, 10.0.5
  • npm @intlify/vue-i18n-core 9.14.2, 10.0.5
  • npm petite-vue-i18n 10.0.5
  • intlify vue-i18n 9.14.2, 10.0.5

Is CVE-2024-52809 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
npm @intlify/core-base
>=9.3.0, <9.14.2
>=10.0.0, <10.0.5
9.14.2
10.0.5
npm vue-i18n
>=9.3.0, <9.14.2
>=10.0.0, <10.0.5
9.14.2
10.0.5
npm @intlify/core
>=9.3.0, <9.14.2
>=10.0.0, <10.0.5
9.14.2
10.0.5
npm @intlify/vue-i18n-core
>=9.3.0, <9.14.2
>=10.0.0, <10.0.5
9.14.2
10.0.5
npm petite-vue-i18n
>=10.0.0, <10.0.5
10.0.5

Affected products

  • intlify vue-i18n

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of intlify/vue-i18n published their own advisory on GitHub. Reviewed sources take precedence over it.