Revive Adserver · Report #3672641
Session ID reuse allowing XML‑RPC API authentication bypass
Validstatus
mediumseverity
8upvotes
3 Jun 2026disclosed
Summary
HackerOne community member 0x4c616e has reported that low‑privileged session IDs generated for the web admin console could be reused in the XML‑RPC API, whose authentication is normally restricted to admin users. An attacker could leverage this to gain unauthorised access and exploit API‑level vulnerabilities.
The session context (web/API) is now recorded along with other session data, preventing session IDs from being used interchangeably.
How it was found
The write-up for this report has not been downloaded yet, or the program disclosed it without one. Read it on HackerOne.