Loco Translate <= 2.8.2 - Authenticated (Translator+) Path Traversal to Limited File Read via 'ref' Parameter

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-1921
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-05 03:15:59 UTC
Updated2026-05-05 03:15:59 UTC
DescriptionThe Loco Translate plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 2.8.2 via the `fsReference` AJAX route. This is due to the `findSourceFile()` method normalizing user-supplied `ref` paths containing `../` directory traversal sequences without validating that the resolved path remains within the intended bundle or content directory. This makes it possible for authenticated attackers, with Translator-level access and above (custom `loco_admin` capability required, granted to the `translator` role and administrators by default), to read arbitrary `.php`, `.js`, `.json`, and `.twig` files from the server filesystem outside the intended translation directory. Files named wp-config.php are excluded.

Risk And Classification

Primary CVSS: v3.1 4.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED4.9MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Timwhitlock Loco Translate affected 2.8.2 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/loco-translate/trunk/src/ajax/FsReferenceController.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3482475/loco-translate/trunk/tpl/admin/config/versi... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/loco-translate/trunk/src/ajax/FsReferenceController.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/f9ff3058-a08c-40ed-b756-81e70... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/loco-translate/tags/2.8.1/src/ajax/FsReferenceControl... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/loco-translate/tags/2.8.1/src/ajax/FsReferenceControl... [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Angus Girvan (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-04T13:32:17.000ZDisclosed
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