Jan 31 (Reuters) - Cvent Holding Corp is exploring a sale that could value the cloud-based event-software provider at upwards of $4 billion, the Wall Street Journal reported on Tuesday citing people familiar with the matter.

The firm has attracted interest from private equity firms including Blackstone Inc, the report added.

Shares in the company closed nearly 23% higher on Tuesday after the potential sale was reported in the media. Stock was up roughly 2% in after market trading.

Cvent did not immediately respond to a Reuters request for comment on the report. (Reporting by Manya Saini in Bengaluru; Editing by Shailesh Kuber)