On 20 September e made his Serie C debut for Paganese as a substitute replacing Emanuele Cicirelli in the 93rd minute of a 2–1 home win over Fidelis Andria.
[6] On 27 November, Palmiero played his first match as a starter for Akragas, a 2–0 away defeat against Paganese, he was replaced by Matteo Zanini in the 60th minute.
[10] On 30 July he made his debut for Cosenza, as a starter, in a 3–2 home defeat, after extra-time, against Alessandria in the first round of Coppa Italia, he was replaced by Massimo Loviso in the 63rd minute.
[11] On 9 September, Palmiero made his Serie C debut for Cosenza as a starter in a 0–0 away draw against Matera, he was replaced by Matteo Calamai in the 56th minute.
[15] On 4 August he started his second season with Cosenza in a 2–1 away win, after extra-time, over Trapani in the second round of Coppa Italia, he played the entire match.
[21] On 11 August he made his debut for the club in a 3–2 home win against Mantova in the second round of Coppa Italia, he played the entire match.
[22] On 1 September he made his league debut and he scored his first goal for the club in the 94th minute of a 4–2 home win over Pordenone, he played the full match.