Despite this, he made the cut as coach Bert van Marwijk trimmed his squad to 26 players from 32 Tuesday, with Maclaren's omission the most controversial, having scored a hat-trick at the weekend for Hibs in their 5-5 draw with Rangers.
Cahill, who has played barely an hour of football in the past six months since crossing to second-tier English side Millwall, survived the cut, keeping his hopes alive of playing at a fourth World Cup at the age of 38.
The FFA and Caltex, the naming-rights sponsor for the Australian men's national team, launched the Cahilltex promotion yesterday.
The opportunistic timing of the "Cahilltex" campaign, whereby a number of petrol stations have been renamed in honour of the country's leading goalscorer to coincide with the Russian Federation tournament, triggered questions about the fairness of Cahill's selection.
Cahill, meanwhile, reacted to the news of his inclusion in Van Marwijk's squad via his Twitter page.
"Absolutely not", he told reporters at a Caltex promotional event. Coach Bert van Marwijk will announce on June 3 the final list of 23 players who will play in the 2018 FIFA World Cup in Russian Federation.
Veterans Tim Cahill and Mark Milligan remain in the squad and are still on track for their fourth World Cup finals, while five current A-League players including 19-year-old Daniel Arzani are still in the running for Russian Federation. Maclaren, capped five times, has been the country's most prolific scorer in Europe-based competitions in recent months but misses out to Cahill, Tomi Juric and Israel-based forward Nikita Rukavytsya.
The Socceroos link-up for their training camp in Antalya on Sunday ahead of the clash with the Czech Republic in St Polten on June 1.
One other uncapped player, defender Fran Karacic, also remains in contention.
In Russia, they are drawn in Group C along with France, Peru and Denmark.