Kingsoft WPS Office Path Traversal Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2024-09-03

[ Description ]Official description

Improper path validation in promecefpluginhost.exe in Kingsoft WPS Office version ranging from 12.2.0.13110 to 12.2.0.16412 (exclusive) on Windows allows an attacker to load an arbitrary Windows library. The vulnerability was found weaponized as a single-click exploit in the form of a deceptive spreadsheet document

CISA: Kingsoft WPS Office contains a path traversal vulnerability in promecefpluginhost.exe on Windows that allows an attacker to load an arbitrary Windows library.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 24 Sep 2024): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• www.wps.com/whatsnew/pc/20240422Vendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource