Essential Plugin WordPress.org portfolio backdoor

Catalogued from the tstromberg supplychain-attack-data dataset
(community-curated incident corpus). Included because first-party
sources exist for it; see the links below — vendor advisories, project
incident reports, and researcher write-ups. Not based on aggregator
coverage.

Mapped techniques

T0172 Runtime backdoor
T0184 Harvesting sensitive information from files
T0111 Malicious code contribution to an open-source repository

supply-chain campaign

T0172 · Execution · Runtime backdoor

Backdoor/RAT payload documented by the cited sources.

T0184 · Credential Access · Harvesting sensitive information from files

Credential or wallet material targeted.

T0111 · Resource Development · Malicious code contribution to an open-source repository

Malicious code in distributed plugin/mod packages.

Sources

https://anchor.host/someone-bought-30-wordpress-plugins-and-planted-a-backdoor-in-all-of-them/
https://www.technadu.com/wordpress-essential-plugin-backdoor-disseminated-to-over-20000-active-wordpress-installations/625912/
https://wpspear.com/essentialplugin-flippa-backdoor/
https://mysites.guru/blog/essential-plugin-wordpress-backdoor/