CVE-2024-35644Network attack vector

Stored XSS via unescaped language settings

Published Mar 6, 2026 · Updated Mar 6, 2026

Stored cross-site scripting in Preferred Languages 2.2.2 and earlier allows remote authenticated users to inject scripts through language settings. The plugin accepts administrator-supplied language setting values without sufficient sanitization and renders the stored values without adequate output escaping. Administrator access and user interaction are required; exploitation is limited to multisite sites or sites where unfiltered_html is disabled, and the script runs in a viewer’s browser.

CVSS severity5.9
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Preferred Languages 2.2.2 and earlier allows remote authenticated users to inject scripts through language settings. The plugin accepts administrator-supplied language setting values without sufficient sanitization and renders the stored values without adequate output escaping. Administrator access and user interaction are required; exploitation is limited to multisite sites or sites where unfiltered_html is disabled, and the script runs in a viewer’s browser.

The record

CVE
CVE-2024-35644
Published
Mar 6, 2026
Updated
Mar 6, 2026
Vendor
Pascal Birchler
Product
Preferred Languages
Classifications
CWE-79, CAPEC-588, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 6, 2026Record 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 <=2.2.2 changes=[{"at":"2.3.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Pascal Birchler · Preferred Languagesversion=n/a <=2.2.2 changes=[{"at":"2.3.0","status":"unaffected"}]

Published CVSS scores

5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based XSS
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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